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Слова на букву culi-dttp (2629)

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deferent
Carrying away. [L. deferens, pres. p. of defero, to carry away]
deferential
Relating to the ductus deferens.
deferentitis
Inflammation of the ductus deferens. SYN: vasitis.
deferoxamine mesylate
Chelate used in the treatment of iron poisoning. SYN: desferrioxamine mesylate.
defervescence
Falling of an elevated temperature; abatement of fever. [L. de-fervesco, to cease boiling, fr. de- neg. + fervesco, to begin to boil]
Defibrillation
The use of a carefully controlled electric shock, administered either through a device on the exterior of the chest wall or directly to the exposed heart muscle, to restart or ...
Defibrillator
A device used to defibrillate the heart. * * * 1. Any agent or measure, e.g., an electric shock, that arrests fibrillation of the ventricular muscle and restores the normal ...
Defibrillator, implantable cardiac
A device put within the body that is designed to recognize certain types of abnormal heart rhythms (arrhythmias) and correct them. Defibrillators continuously monitor the heart ...
defibrination
Removal of fibrin from the blood, usually by means of constant agitation while the blood is collected in a container with glass beads or chips.
deficiency
An insufficient quantity of some substance (as in dietary d. or hemoglobin d. in marrow aplasia); organization (as in mental d.); activity (as in enzyme d. or reduced ...
Deficiency, adenosine deaminase (ADA)
A genetic (inherited) condition that results in a immune deficiency disorder called severe combined immunodeficiency disease. Adenosine deaminase is an enzyme that plays a key ...
Deficiency, alpha-galactosidase A
Fabry disease, a genetic disorder. The enzyme alpha-galactosidase A is essential to the metabolism of molecules known as glycosphingolipids. Without the enzyme, glycosphingolipids ...
Deficiency, ankyrin
Known also as hereditary spherocytosis (HS), this is a genetic disorder of the red blood cell membrane clinically characterized by anemia, jaundice (yellowing) and splenomegaly ...
Deficiency, calcium
A low level of calcium in the blood (hypocalcemia) makes the nervous system highly irritable and causes tetany (spasms of the hands and feet, muscle cramps, abdominal cramps, ...
Deficiency, FALDH
Also known as the Sjogren-Larsson syndrome, this is a genetic (inherited) disease usually characterized by a triad of clinical findings consisting of ichthyosis (thickened ...
Deficiency, FAO
Also known as the Sjogren-Larsson syndrome, this is a genetic (inherited) disease usually characterized by a triad of clinical findings consisting of ichthyosis (thickened ...
Deficiency, fatty alcohol: NAD+ oxidoreductase
Also known as the Sjogren-Larsson syndrome, this is a genetic (inherited) disease usually characterized by a triad of clinical findings consisting of ichthyosis (thickened ...
Deficiency, fatty aldehyde dehydrogenase
Also known as the Sjogren-Larsson syndrome, this is a genetic (inherited) disease usually characterized by a triad of clinical findings consisting of ichthyosis (thickened ...
Deficiency, GALT
Lack of the enzyme called GALT (galactose-1-phosphate uridyl transferase) which causes the genetic metabolic disease galactosemia, one of the diseases in many newborn screening ...
Deficiency, glucocerebrosidase
Causes type 1 Gaucher disease, a progressive genetic disease due to an enzyme defect. The enzyme, glucocerebrosidase, is needed to break down the chemical glucocerebroside. The ...
Deficiency, glucose-6-phosphate dehydrogenase (G6PD)
Deficiency of G6PD is the commonest disease-causing enzyme defect in humans affecting an estimated 400 million people. The G6PD gene is on the X chromosome. Males with the enzyme ...
Deficiency, hex-A
Deficiency of the enzyme hexosaminidase A, the cause of Tay-Sachs disease. Hex-A deficiency results in failure to process a lipid (a fat) which accumulates and is deposited in ...
Deficiency, hexosaminidase A
Deficiency of the enzyme hexosaminidase A, the cause of Tay-Sachs disease. Hex-A deficiency results in failure to process a lipid (a fat) which accumulates and is deposited in ...
Deficiency, iron
The most common known form of nutritional disorder in the world, iron deficiency results in anemia because iron is necessary to make hemoglobin, key molecule in red blood cells ...
Deficiency, lactase
Not enough of an enzyme called lactase in the small intestine to digest lactose, a prominent component of milk and most other dairy products. Lactose is sometimes also used as an ...
Deficiency, LCHAD
Acute fatty liver of pregnancy (AFLP) has been found to be associated in some cases with an abnormality of fatty-acid metabolism. This abnormality is a deficiency of the enzyme ...
Deficiency, long-chain-3-hydroxyacyl-CoA dehydrogenase
Acute fatty liver of pregnancy (AFLP) has been found to be associated in some cases with an abnormality of fatty-acid metabolism. This abnormality is a deficiency of the enzyme ...
Deficiency, magnesium
Can occur due to inadequate intake or impaired intestinal absorption of magnesium. Low magnesium (hypomagnesemia) is often associated with low calcium (hypocalcemia) and ...
Deficiency, niacin
Deficiency of niacin, one of the B-complex vitamins, causes pellagra. Pellagra was known as the "disease of the four D's" — dermatitis, diarrhea, dementia and death. The ...
Deficiency, protein C
Protein C is a protein in plasma that enters into the cascade of biochemical events leading to the formation of a clot.
Deficiency, selenium
Deficiency of the essential mineral selenium causes Keshan disease, a fatal form of cardiomyopathy (disease of the heart muscle) first observed in Keshan province in China and ...
Deficiency, sphingomyelinase
Also called Niemann-Pick disease, this is a disorder of the metabolism of a lipid (fat) called sphingomyelin that usually causes the progressive development of enlargement of the ...
Deficiency, UDP-glucuronosyltransferase
Underactivity of a liver enzyme that is essential to the disposal of bilirubin (the chemical that results from the normal breakdown of hemoglobin from red blood cells). The ...
Deficiency, UROD
Lack of the enzyme uroporphyrinogen decarboxylase (UROD) which is the basic cause of porphyria cutanea tarda (PCT), the late skin form of porphyria. PCT is a genetic ...
Deficiency, uroporphyrinogen decarboxylase
Lack of the enzyme uroporphyrinogen decarboxylase (UROD) which is the basic cause of porphyria cutanea tarda (PCT), the late skin form of porphyria. PCT is a genetic ...
Deficiency, vitamin K
A lack of vitamin K resulting in an increase in the clotting time of the blood, impaired clotting and a tendency to excessive bleeding. Blood clotting is delayed or prevented ...
Deficiency, zinc
According to the National Academy of Sciences, the Recommended Dietary Allowances of zinc are 12 milligrams per day for women and 10 milligrams per day for men. Food sources of ...
deficit
The result of consuming or using something faster than it is being replenished or replaced. [L. deficio, to fail] - base d. a decrease in the total concentration of blood buffer ...
definition
In optics, the power of a lens to give a distinct image. SEE ALSO: resolving power. [L. de-finio, pp. -finitus, to bound, fr. finis, limit]
deflection
1. A moving to one side. 2. In the electrocardiogram, a deviation of the curve from the isoelectric base line; any wave or complex of the electrocardiogram. [L. de-flecto, pp. ...
deflexion
Term used to describe the position of the fetal head in relation to the maternal pelvis in which the head is descending in a nonflexed or extended attitude. [de- + L. flexio, a ...
deflorescence
Disappearance of the eruption in scarlet fever or other exanthemas. [L. de-floresco, to fade, wither, fr. flos (flor-), flower]
defluoridation
Removal of excess fluorides from a community water supply.
defluvium
SYN: defluxion. [L., fr. de-fluo, pp. -fluxus, to flow down]
defluxion
1. A falling down or out, as of the hair. SEE ALSO: effluvium. 2. A flowing down or discharge of fluid. SYN: defluvium. [L. defluxio, de-fluo, pp. -fluxus, to flow down]
deformability
The ability of cells, such as erythrocytes, to change shape as they pass through narrow spaces, such as the microvasculature.
Deformation
A change from the normal size or shape of a structure produced by mechanical forces that distort an otherwise normal structure. Deformations occur most often late in pregnancy or ...
deforming
Causing a deviation from the normal form.
deformity
A permanent structural deviation from the normal shape, size, or alignment, resulting in disfigurement; may be congenital or acquired. SEE ALSO: deformation (1). - Åkerlund d. ...
Deformity, cauliflower-ear
Destruction of the underlying cartilage framework of the outer ear (pinnae), usually caused by either infection or trauma, resulting in a thickening of the ear. Classically, ...
defurfuration
The shedding of the epidermis in the form of fine scales. SYN: branny desquamation. [L. de, away from, + furfur, bran]
deganglionate
To deprive of ganglia.
degeneracy
1. A condition marked by deterioration of mental, physical, or moral processes. 2. The fact that several different triplet codons encode the same amino acid. [L. de, from, + ...
degenerate
1. (de-jen′er-at)To pass to a lower level of mental, physical, or moral state; to fall below the normal or acceptable type or state. 2. (de-jen′e-rat)Below the normal or ...
degeneratio
SYN: degeneration. [L. degenero, pp. -atus, fr. de, from, + genus, race]
degeneration
1. Deterioration; passing from a higher to a lower level or type. 2. A worsening of mental, physical, or moral qualities. 3. A retrogressive pathologic change in cells or ...
Degeneration, macular
A disease that progressively destroys the macula, the central portion of the retina, impairing central vision. Macular degeneration rarely causes blindness because only the ...
degenerative
Relating to degeneration.
degloving
1. Intraoral surgical exposure of the anterior mandible used in various orthognathic surgical operations such as genioplasty or mandibular alveolar surgery. 2. Intraoral ...
deglut.
Abbreviation for L. deglutiatur, swallow.
Deglutition
The act of swallowing, particularly the swallowing of food. The muscles of deglutition are the muscles employed in the act of swallowing. "Deglutition" is a French word, which ...
deglutitive
Relating to deglutition.
Degos
Robert, French dermatologist, *1904. See D. disease, D. syndrome, Kohlmeier-D. syndrome.
degradation
The change of a chemical compound into a less complex compound. [L. degradatus, degrade]
degranulation
Disappearance or loss of cytoplasmic granules (lysosomes) from a cell.
degree
1. One of the divisions on the scale of a measuring instrument such as a thermometer, barometer, etc. See Comparative Temperature Scales appendix. See scale. 2. The 360th part ...
degustation
1. The act of tasting. 2. The sense of taste. [L. degustatio, fr. de-gusto, pp. -atus, to taste]
dehalogenase
Any enzyme (EC subclass 3.8) removing halogen atoms from organic halides.
Dehio
Karl K., Russian physician, 1851–1927. See D. test.
dehiscence
A bursting open, splitting, or gaping along natural or sutured lines. [L. dehisco, to split apart or open] - iris d. a defect of the eye characterized by multiple holes in the ...
DEHP
A softener for polyvinyl chloride (PVC), a plastic polymer used in a wide array of products. Unplasticized PVC is hard and brittle at room temperature. A plasticizer (softener) ...
dehumanization
Loss of human characteristics; brutalization by either mental or physical means; stripping one of self-esteem. [de- + humanus, human, fr. homo, man]
dehydrase
Former name for dehydratase.
dehydratase
A subclass (EC 4.2.1.x) of lyases ( hydro-lyases) that remove H and OH as H2O from a substrate, leaving a double bond, or add a group to a double bond by the elimination of ...
dehydrate
1. To extract water from. 2. To lose water. [L. de, from + G. hydor (hydr-), water]
Dehydration
Excessive loss of body water. Diseases of the gastrointestinal tract that cause vomiting or diarrhea may, for example, lead to dehydration. There are a number of other causes of ...
dehydro-
Prefix used in the names of those chemical compounds that differ from other and more familiar compounds in the absence of two hydrogen atoms; e.g., dehydroascorbic acid, which ...
dehydro-3-epiandrosterone
a steroid secreted chiefly by the adrenal cortex, but also by the testis; it is the principal precursor of urinary 17-ketosteroids. Weakly androgenic itself, it is metabolized ...
dehydroacetic acid
An antimicrobial agent used as a preservative in cosmetics.
dehydrobilirubin
SYN: biliverdin.
dehydrocholate
A salt or ester of dehydrocholic acid.
dehydrocholic acid
Has a stimulating effect upon the secretion of bile by the liver (choleretic), and improves the absorption of essential food materials in states associated with deficient bile ...
dehydroemetine
A synthetic derivative of emetine; used in the treatment of intestinal amebiasis. - d. resinate a derivative of emetine.
dehydroepiandrosterone
Steroid agent related to male hormones that have been advocated as able to prevent physiologic consequences of aging, without studies that show benefit or safety.
dehydrogenase
Class name for those enzymes that oxidize substrates by catalyzing removal of hydrogen from metabolites (hydrogen donors) and transferring it to other substances (hydrogen ...
dehydrogenate
To subject to dehydrogenation.
dehydrogenation
Removal of a pair of hydrogen atoms from a compound by the action of enzymes (dehydrogenases) or other catalysts.
dehydroisoandrosterone
SYN: dehydro- 3- epiandrosterone.
dehydroretinaldehyde
Dehydroretinol with –CHO instead of –CH2OH at the terminal carbon of the side chain. SYN: retinene-2, vitamin A2 aldehyde.
dehydroretinoic acid
Dehydroretinol with –COOH in place of –CH2OH at the terminal carbon of the side chain.
dehydroretinol
Retinol with an additional double bond in the 3-4 position of the cyclohexane ring. SYN: vitamin A2.
dehydrosugars
SYN: anhydrosugars.
dehypnotize
To bring out of the hypnotic state.
deiminases
SYN: iminohydrolases.
deinstitutionalization
The discharge of institutionalized patients from a mental hospital into treatment programs in half-way houses and other community-based programs.
deionization
The production of a mineral-free state by the removal of ions.
Deiters
Otto F.K., German anatomist, 1834–1863. See D. cells, under cell, D. terminal frames, under frame, D. nucleus.
déjà voulu
A term for a type of disturbance of memory in which the individual believes that his or her present desires are exactly the same as the desires the individual had some time before.
Deja vu
(In French, déjŕ vu means "already seen." and the word déjŕ has an acute accent on the é and a grave accent on the ŕ but we have omitted the accents from the entry term for ...
dejecta
SYN: dejection (3). [L. neut, pl. of de-jectus, fr. de-jicio, to cast down]
dejection
1. SYN: depression (4). 2. The discharge of excrementitious matter. 3. The matter so discharged. SYN: dejecta. [L. dejectio, fr. de- jicio, pp. -jectus, to cast down]
Dejerine
Joseph J., Paris neurologist, 1849–1917. See D. disease, D. hand phenomenon, D. reflex, D. sign, D.- Roussy syndrome, D.- Sottas disease, D.-Klumpke syndrome, Landouzy-D. ...
Dejerine-Klumpke
Augusta, French neurologist (born in the U.S.), 1859–1927. See Klumpke palsy, Klumpke paralysis, D. palsy, D. syndrome.
Déjŕ vu
A disquieting feeling of having been somewhere or done something before, even though one has not. Although most people have experienced this feeling at some time or another, in ...
deka-
See deca-.
Del Castillo
E.B., 20th century Argentinian physician. See D. syndrome.
Delafield
Francis, U.S. physician and pathologist, 1841–1915. See D. hematoxylin.
delamination
Division into separate layers. [L. de, from, + lamina, a thin plate]
Delaney clause
A clause of the Food Additive Amendment of the U.S. Federal law specifying that no substance that has been found to induce cancer in any animal may be incorporated into food. ...
Delay, developmental
Behind schedule in reaching milestones of early childhood development.
Delbet
Pierre L.E., French surgeon, 1861–1925. See D. sign.
deleterious
Injurious; noxious; harmful. [G. deleterios, fr. deleomai, to injure]
Deletion
Loss of a segment of DNA from a chromosome (and hence from the genome). The first human chromosome deletion was detected in 1963 by Jerome Lejeune and his colleagues in Paris. ...
delicate
Of feeble resisting power. [L. delicatus, soft, luxurious, fr. de, from, + lacio, to entice]
delimitation
Marking off; putting bounds or limits; preventing the spread of a morbid process in the body or of a disease in the community. [L. de-limito, pp. -atus, to bound, fr. limes, ...
deliquesce
To undergo deliquescence.
deliquescence
Becoming damp or liquid by absorption of water from the atmosphere and then dissolving in the water taken up; a property found in certain salts, such as CaCl2. [L. de-liquesco, ...
deliquescent
Denoting a solid capable of deliquescence.
deliria
Plural of delirium. See delirium.
delirious
In a state of delirium.
delirium
An altered state of consciousness, consisting of confusion, distractibility, disorientation, disordered thinking and memory, defective perception (illusions and ...
Delirium tremens
A neurological symptom of alcohol withdrawal seen in chronic alcoholism, with includes symptoms of psychosis. These may include uncontrollable trembling, hallucinations, ...
delitescence
Rarely used term for: 1. Sudden subsidence of symptoms; disappearance of a tumor or a cutaneous lesion. 2. Period of incubation of an infectious disease. [L. delitesco, to lie ...
deliver
1. To assist a woman in childbirth. 2. To extract from an enclosed place, as the fetus from the womb, an object or foreign body, e.g., a tumor from its capsule or surroundings, ...
delivery
Passage of the fetus and the placenta from the genital canal into the external world. - assisted cephalic d. extraction of a fetus that presents by the head. - breech d. ...
Delivery, breech
Delivery in which the buttocks present before the head.
Delivery, footling
There are single-footling or double-footling deliveries depending upon whether the presenting part of the baby at delivery is just one foot or both feet.
Delivery, vertex
In a vertex delivery, the top of the baby’s head comes first. The vertex here refers to the top of the head The word "vertex" in Latin means a "whirlpool, ...
delle
The central lighter-colored portion of the erythrocyte, as observed in a stained film of blood. [Ger. D., low ground, pit]
dellen
Shallow, saucerlike, clearly defined excavations at the margin of the cornea, about 1.5 by 2 mm, due to localized dehydration; also called Fuchs d.. [Ger. pl. of Delle, low ...
delomorphous
Of definite form and shape; a term applied in the past to the parietal cells of the gastric glands. [G. delos, manifest, + morphe, form]
delouse
To remove lice from; to free from infestation with lice; used especially of prophylaxis of louse-borne diseases.
delphinine
A toxic alkaloid, an aconine derivative, from Delphinium staphisagria; it resembles aconitine in its action and chemical structure.
Delphinium ajacis
A species of plant (family Ranuculaceae) containing the alkaloids ajacine and ajaconine; the dried ripe seeds have been used externally as a parasiticide in pediculosis; rarely ...
delta
1. Fourth letter of the Greek alphabet, Δ (capital), δ (lower case). 2. In anatomy, a triangular surface. - d. check a comparison of consecutive values for a given test in a ...
Delta-storage pool disease
A genetic (inherited) disorder, also known as the Hermansky-Pudlak syndrome (HPS), characterized by albinism (with lack of skin and eye pigment), bruising and prolonged bleeding ...
Deltoid
The muscle, roughly triangular in shape, that stretches from the clavicle (collarbone) to the humerus, the upper bone of the arm. It is contracted to move the arm away from the ...
delusion
A false belief or wrong judgment held with conviction despite incontrovertible evidence to the contrary. [L. de-ludo, pp. -lusus, to play false, deceive, fr. ludo, to play] - d. ...
delusional
Relating to a delusion.
demand
A quantity of a substance, commodity, or service wanted or required. - biochemical oxygen d. (BOD) the rate at which dissolved oxygen is consumed by an organism (often, a ...
Demarcation
A setting of limits; a boundary; marking the limits of, delimiting; setting apart, separating. The word "demarcation" is used in medicine mainly in the sense of determining and ...
Demarquay
Jean N., French surgeon, 1814–1875. See D. sign.
demasculinizing
Depriving of male characteristics or inhibiting development of such characteristics.
Dematiaceae
A family of soil-inhabiting, brown or black melanin-producing fungi found in decaying vegetables, rotting wood, and forest carpets, and including several of the dark-colored ...
dematiaceous
Denoting dark conidia and/or hyphae, usually brown or black; used frequently to denote dark-colored fungi.
deme
A local, small, highly inbred group or kinship. Cf.:isolate. [G. demos, people]
demecarium bromide
A potent cholinesterase inhibitor used in the treatment of glaucoma and accommodative esotropia; it is stable in aqueous solution.
demeclocycline
A broad-spectrum antibiotic that is more slowly excreted and more stable in acid and alkali than are other forms of the tetracyclines; available as the hydrochloride.
demecolcine
An alkaloid from Colchicum autumnale (family Liliaceae) similar chemically to colchicine except that the acetyl group is replaced by a methyl group; used for gout and leukemia, ...
demented
Suffering from dementia.
Dementia
Significant loss of intellectual abilities such as memory capacity, severe enough to interfere with social or occupational functioning. Criteria for the diagnosis of dementia ...
Dementia, MELAS
MELAS is the acronym for Mitochondrial Encephalopathy, Lactic Acidosis, and Strokelike episodes. MELAS is a form of dementia. It is caused by mutations in the genetic material ...
demethylase
SYN: methyltransferase.
demethylation
The enzymatic removal of methyl groups.
demi-
Half, lesser. SEE ALSO: hemi-, semi-. [Fr. fr. L. dimidius, half]
demigauntlet
A glovelike bandage for the fingers and hand. [ demi- + gauntlet, armored glove, fr. M.E., fr. O.Fr., fr. Germanic]
demilune
1. A small body with a form similar to that of a half-moon or a crescent. 2. Term frequently used for the gametocyte of Plasmodium falciparum. [Fr. half-moon] - Giannuzzi ...
demineralization
A loss or decrease of the mineral constituents of the body or individual tissues, especially of bone.
demipenniform
SYN: semipennate.
Demodex
A genus of very minute (0.1–0.4 mm) follicular mites (family Demodicidae) that inhabit the skin and are usually found in the sebaceous glands and hair follicles of mammals, ...
demography
The study of populations, especially with reference to size, density, fertility, mortality, growth rate, age distribution, migration, and vital statistics. [G. demos, people, + ...
Demoivre
Abraham, English mathematician, 1667–1754. See D. formula.
demoniac
Frenzied, fiendish, as if possessed by evil spirits. [G. daimon, a spirit]
Demonophobia
An abnormal and persistent fear of evil supernatural beings in persons who believe such beings exist and roam freely to cause harm. Those who suffer from this phobia realize their ...
demonstrator
An assistant to a professor of anatomy, surgery, etc., who prepares for the lecture by dissections or collection of patients, or who instructs small classes supplementary to the ...
demorphinization
1. Removal of morphine from an opiate. 2. Gradual withdrawal of morphine as a method of overcoming morphine dependence.
demucosation
Rarely used term for excision or stripping of the mucosa of any part.
Demulcent
Soothing. The word "demulcent" comes from the Latin verb, "demulcere" meaning "to caress." Something that is demulcent is caressing. The term "demulcent" refers to an agent, such ...
Demyelination
A degenerative process that erodes away the myelin sheath that normally protects nerve fibers. Demyelination exposes these fibers and appears to cause problems in nerve impulse ...
demyelination, demyelinization
Loss of myelin with preservation of the axons or fiber tracts. Central d. occurs within the central nervous system ( e.g., the d. seen with multiple sclerosis); peripheral d. ...
denarcotize
To remove narcotic properties from an opiate; to deprive of narcotic properties.
denatonium benzoate
An alcohol denaturant.
denaturation
The process of becoming denatured.
denatured
1. Made unnatural or changed from the normal in any of its characteristics; often applied to proteins or nucleic acid s heated or otherwise treated to the point where tertiary ...
dendriform
Tree-shaped, or branching. SYN: arborescent, dendritic (1), dendroid. [G. dendron, tree, + L. forma, form]
Dendrite
A short arm-like protuberance from a nerve cell (a neuron). Dendrites from neurons next to one another are tipped by synapses (tiny transmitters and receivers for chemical ...
Dendritic
Referring to a dendrite, a short arm-like protuberance from a nerve cell (a neuron). Dendrites from neurons next to one another are tipped by synapses (tiny transmitters and ...
Dendritic cell
A special type of cell that is a key regulator of the immune system, acting as a professional antigen-presenting cell (APC) capable of activating naďve T cells and stimulating ...
dendrogram
A treelike figure used to represent graphically a hierarchy. [dendron, tree, + gramma, a drawing]
dendroid
SYN: dendriform. [G. dendron, tree, + eidos, appearance]
dendron
SYN: dendrite (1). [G. a tree]
denervate
To cause denervation.
denervation
Loss of nerve supply.
Dengue
An acute mosquito-borne viral illness of sudden onset that usually follows a benign course with headache, fever, prostration, severe joint and muscle pain, swollen glands ...
Dengue fever
An acute mosquito- borne viral illness of sudden onset that usually follows a benign course with headache, fever, prostration, severe joint and muscle pain, swollen glands ...
Dengue hemorrhagic fever (DHF)
A syndrome due to the dengue virus that tends to affect children under 10, causing abdominal pain, hemorrhage (bleeding) and circulatory collapse (shock). DHF starts abruptly ...
Dengue shock syndrome
A syndrome due to the dengue virus that tends to affect children under 10, causing abdominal pain, hemorrhage (bleeding) and circulatory collapse (shock). Known also as dengue ...
denial
An unconscious defense mechanism used to allay anxiety by denying the existence of important conflicts, troublesome impulses, events, actions, or illness. SYN: negation. [M.E., ...
denidation
Exfoliation of the superficial portion of the mucous membrane of the uterus; stripping off of the menstrual decidua. [L. de, from, + nidus, nest]
denitration
SYN: denitrification.
denitrification
1. Removal of nitrogen from any material or chemical compound; especially from the soil, as by certain (denitrifying) bacteria that render the nitrogen unavailable for plant ...
denitrify
To remove nitrogen from any material or chemical compound.
denitrogenation
Elimination of nitrogen from lungs and body tissues by breathing gases devoid of nitrogen.
Dennie
Charles Clayton, U.S. dermatologist, 1883–1971. See D.-Morgan fold, D. line.
denominator
The lower portion of a fraction used to calculate a rate or ratio; the population at risk in the calculation of a rate or ratio.
Denonvilliers
Charles P., French surgeon, 1808–1872. See D. aponeurosis, D. ligament.
dens
1. SYN: tooth. 2. A strong toothlike process projecting upward from the body of the axis, or epistropheus, around which the atlas rotates. SYN: d. axis [TA], odontoid process ...
densimeter
SYN: densitometer (1). [L. densitas, density, + G. metron, measure]
densitometer
1. An instrument for measuring the density of a fluid. SYN: densimeter. 2. An instrument for measuring, by virtue of relative turbidity, the growth of bacteria in broth; useful ...
densitometry
A procedure utilizing a densitometer.
density
1. The compactness of a substance; the ratio of mass to unit volume, usually expressed as g/cm3 (kg/m3 in the SI system). 2. The quantity of electricity on a given surface or in ...
dent-, denti-, dento-
Teeth; dental. SEE ALSO: odonto-. [L. dens, tooth]
dental
Relating to the teeth. [L. dens, tooth]
Dental & Craniofacial Research, National Institute of (NIDCR)
One of the National Institutes of Health (NIH) in the U.S., the NIDCR is for dental and other craniofacial diseases. NIDCR’s mission is, in formal terms, to “provide ...
Dental Association, American (ADA)
The mission statement of the ADA reads as follows: "The ADA is the professional association of dentists dedicated to serving both the public and the profession of dentistry. The ...
Dental braces (orthodontics)
The use of devices to move teeth or adjust underlying bone. The ideal age for starting orthodontic treatment is between ages 3 to 12 years. Temporomandibular joint (TMJ) problems ...
Dental drill
A device that dentists use to drill into teeth. Primitive dental drills were used in the 18th and early 19th centuries. In 1868, American dentist George F. Green added power to ...
dental engine
The motive power of a dental handpiece that causes it to rotate.
Dental impaction
Teeth pressing together. For example, molar teeth (the large teeth in the back of the jaw) can be impacted, cause pain and require pain medication, antibiotics, and surgical ...
Dental pain (toothache)
The most common cause of a toothache is a dental cavity. The second most common is gum disease. Toothache can be
dentalgia
SYN: toothache. [L. dens, tooth, + G. algos, pain]
dentate
Notched; toothed; cogged. [L. dentatus, toothed]
dentatectomy
Surgical destruction of the dentate nucleus of the cerebellum. [ dentate (nucleus) + G. ectome, excision]
dentatum
SYN: dentate nucleus of cerebellum. [L. neut. of dentatus, toothed]
dentes
Plural of dens. [L.]
denti-
See dent-.
dentia
The process of tooth development or eruption. Also serves to denote a relationship to the teeth. [dent- + suffix -ia, condition, process] - d. praecox (den-te′a pre-coks) ...
denticle
1. SYN: endolith. 2. A toothlike projection from a hard surface. [L. denticulus, a small tooth]
denticulate, denticulated
1. Finely dentated, notched, or serrated. 2. Having small teeth.
dentiform
Tooth-shaped; pegged. SEE ALSO: odontoid (1). [ denti- + L. forma, form]
dentifrice
Any preparation used in the cleansing of the teeth, e.g., a tooth powder, toothpaste, or tooth wash. [L. dentifricium, fr. dens, tooth, + frico, pp. frictus, to rub]
dentigerous
Arising from or associated with teeth, as a d. cyst. [ denti- + L. gero, to bear]
dentilabial
Relating to the teeth and lips. [ denti- + L. labium, lip]
dentilingual
Relating to the teeth and tongue. [ denti- + L. lingua, tongue]
Dentin
Dentin is the hard tissue of the tooth surrounding the central core of nerves and blood vessels (pulp). * * * SYN: dentine. [L. dens, tooth] - hereditary opalescent d. 1. SYN: ...
dentinal
Relating to dentin.
dentinalgia
Dentinal sensitivity or pain. [ dentin + G. algos, pain]
dentine
The ivory forming the mass of the tooth. About 20% is organic matrix, mostly collagen, with some elastin and a small amount of mucopolysaccharide; the inorganic fraction (70%) ...
dentinocemental
Relating to the dentin and cementum of teeth. SYN: cementodentinal.
dentinoenamel
Relating to the dentin and enamel of teeth. SYN: amelodentinal.
dentinogenesis
The process of dentin formation in the development of teeth. [ dentin + G. genesis, production] - d. imperfecta [MIM*125490 & MIM*125500] an autosomal dominant disorder of the ...
dentinoid
1. Resembling dentin. 2. SYN: dentinoma. [ dentin + G. eidos, resembling]
dentinoma
A rare benign odontogenic tumor consisting microscopically of dysplastic dentin and strands of epithelium within a fibrous stroma. SYN: dentinoid (2). [ dentin + G. -oma, ...
dentinum
SYN: dentine. [L. dens, tooth]
dentiparous
Tooth-bearing. [ denti- + L. pario, to bear]
dentist
A legally qualified practitioner of dentistry.
dentistry
The healing science and art concerned with the structure and function of the oral-facial complex, and with the prevention, diagnosis, and treatment of deformities, pathoses, and ...
dentition
The natural teeth, as considered collectively, in the dental arch; may be deciduous, permanent, or mixed. [L. dentitio, teething] - artificial d. SYN: denture (1). - deciduous ...
dento-
See dent-.
dentoalveolar
Usually, denoting that portion of the alveolar bone immediately about the teeth; used also to denote the functional unity of teeth and alveolar bone.
dentode
An exact reproduction of a tooth on a gnathographically mounted cast.
dentoid
SYN: odontoid (1). SEE ALSO: dentiform. [dent- + G. eidos, resemblance]
dentolegal
Relating to both dentistry and the law. See forensic dentistry.
dentoliva
Rarely used term for oliva. [L. dens, tooth, + oliva, olive]
dentulous
Having natural teeth present in the mouth.
Denture
An artificial set of teeth that can be removed. * * * 1. An artificial substitute for missing natural teeth and adjacent tissues. SYN: artificial dentition. 2. Sometimes used to ...
denture service
Those procedures performed in the diagnosis, construction, and maintenance of artificial substitutes for missing natural teeth.
denturist
A dental technician who fabricates and fits dentures without supervision of a dentist.
Denucé
Jean L.P., French surgeon, 1824–1889. See Denucé ligament.
denucleated
Deprived of a nucleus.
denudation
Depriving of a covering or protecting layer; the act of laying bare, as in the removal of the epithelium from a surface. [L. de-nudo, to lay bare, fr. de, from, + nudus, naked]
denude
To perform denudation.
Denver Developmental Screening Test
The Denver Developmental Screening Test (DDST) is a widely used assessment for examining children 0-6 years of age as to their developmental progress. The name "Denver" reflects ...
Denys
Joseph, Belgian bacteriologist, 1857–1932. See D.- Leclef phenomenon.
deodorant
1. Eliminating or masking a smell, especially an unpleasant one. 2. An agent having such an action; especially a cosmetic combined with an antiperspirant. SYN: deodorizer. ...
deodorize
To use a deodorant.
deodorizer
SYN: deodorant (2).
deontology
The study of professional ethics and duties. [G. deon (deont-), that which is binding, pr. part. ntr. of dei, (impers.) it behooves, fr. deo, to bind, + logos, study]
deorsumduction
Rotation of one eye downward. SYN: infraduction. [L. deorsum, downward, + duco, to lead]
deossification
Removal of the mineral constituents of bone. See demineralization. [L. de, from, + os, bone, + facio, to make]
deoxidation
Depriving a chemical compound of its oxygen.
deoxidize
To remove oxygen from its chemical combination.
deoxy-
Prefix to chemical names of substances to indicate replacement of an –OH by an H. The older desoxy- has been retained in some instances.
deoxyadenosine
2′-Deoxyribosyladenine, one of the four major nucleosides of DNA (the others being deoxycytidine, deoxyguanosine, and thymidine). The 5′ derivative is also an important ...
deoxyadenosine methylase
SYN: dam methylase.

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