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Слова на букву culi-dttp (2629)

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diathermanous
Permeable by heat rays. SYN: transcalent. [G. dia-thermaino, to heat through, fr. thermos, hot]
diathermic
Relating to, characterized by, or affected by diathermy. SYN: diathermal.
diathermocoagulation
SYN: surgical diathermy.
Diathermy
: The use of heat to destroy abnormal cells. Also called cauterization or electrodiathermy. * * * Local elevation of temperature within the tissues, produced by high frequency ...
Diathesis
In medicine, a "diathesis" is an elegant term for a predisposition or tendency. Thus, a hemorrhagic diathesis is nothing more than a bleeding tendency. The word ...
diathetic
Relating to a diathesis.
diatom
An individual of microscopic unicellular algae, the shells of which compose a sedimentary infusorial earth. [G. diatomos, cut in two]
diatomaceous
Pertaining to diatoms or their fossil remains.
diatomic
1. Denoting a compound with a molecule made up of two atoms. 2. Denoting any ion or atomic grouping composed of two atoms only.
diatoric
1. The vertical cylindric aperture formed in the base of artificial porcelain teeth and extending into the body of the tooth, serving as a mechanical means of attaching the ...
diatrizoate
Salt of 3,5-diacetamido-2,4,6-triiodobenzoic acid. See sodium d..
diazepam
A skeletal muscle relaxant, sedative, and antianxiety agent; also used as an anticonvulsant, particularly in the treatment of status epilepticus by the parenteral route.
diazines
A group of synthetic tuberculostatic drugs, such as pyrazine carboxamide and pyridazine-3-carboxamide.
diazinon
A sulfur-containing organophosphate compound used as an insecticide and cholinesterase inhibitor.
diazo-
Prefix denoting a compound containing the R—N=N—X or R=N2 grouping, where X is not carbon (except for CN). An example is diazomethane, CH2N2. Cf.:azo-. [G. di-, two, + Fr. ...
diazotize
To introduce the diazo group into a chemical compound, usually through the treatment of an amine with nitrous acid.
diazoxide
An antihypertensive agent.
dibasic
Having two replaceable hydrogen atoms, denoting an acid with two ionizable hydrogen atoms.
dibenamine
A nonspecific and irreversible antagonist at alpha-adrenergic receptors. Prevents vasoconstriction produced by epinephrine and norepinephrine and similar agents causing ...
dibenzepin hydrochloride
An antidepressant.
dibenzheptropine citrate
SYN: deptropine citrate.
dibenzopyridine
SYN: acridine.
dibenzothiazine
SYN: phenothiazine.
dibenzthione
An antifungal antiseptic. SYN: sulbentine.
Dibothriocephalus
Former name for Diphyllobothrium. [G. di-, two, + bothrion, dim. of bothros, a pit, + kephale, head] - D. latus SYN: Diphyllobothrium latum.
dibromsalan
A disinfectant.
dibucaine
A potent local anesthetic with a long duration of action used by injection or topically on skin or mucous membranes.
dibucaine hydrochloride
A potent local anesthetic (surface and spinal anesthesia).
dibucaine number
A test for differentiation of one of several forms of atypical pseudocholinesterases that are unable to inactivate succinylcholine at normal rates; based upon percent ...
dibutoline sulfate
An anticholinergic agent used as a mydriatic, a cycloplegic, and a gastrointestinal antispasmodic.
dibutyl phthalate
An insect repellent.
DIC
Abbreviation for disseminated intravascular coagulation.
dicacodyl
SYN: cacodyl.
dicelous
Having two cavities or excavations on opposite surfaces. [G. di-, two, + koilos, hollow]
dicentric
Referring to a structural chromosome having two centromeres, an abnormal state.
Dicentric chromosome
An abnormal chromosome (a microscopically visible carrier of the genetic material DNA) with two centromeres rather than the normal one. The centromere is essential for the ...
dicephalous
Having two heads.
dicephalus
Symmetrical conjoined twins with two separate heads. See conjoined twins, under twin. SYN: bicephalus, diplocephalus. [G. di-, two, + kephale, head] - d. diauchenos a d. with ...
dicheilia, dichilia
A lip appearing to be double because of the presence of an abnormal fold of mucosa. [G. di-, two, + cheilos, lip]
dicheiria, dichiria
Complete or incomplete duplication of the hand. SEE ALSO: polydactyly. SYN: diplocheiria, diplochiria. [G. di-, two, + cheir, hand]
Dichelobacter nodosus
SYN: Bacteroides nodosus.
dichloramine-T
Used as an antiseptic in surgical dressings.
dichloride
A compound with a molecule containing two atoms of chlorine to one of another element.
dichlorisone
A topical antipruritic agent.
dichlorobenzene
An insecticide used chiefly as a moth repellent.
dichlorodifluoromethane
An easily liquefiable gas used as a refrigerant and aerosol propellant.
dichlorodiphenyltrichloroethane
An insecticide that came into prominence during and after World War II. For a time it proved very effective, but insect populations rapidly developed tolerance for it, hence ...
dichloroformoxime
SYN: phosgene oxime.
dichlorohydrin
A colorless, odorless fluid prepared by heating anhydrous glycerin with sulfur monochloride; a solvent of resins. SYN: dichloroisopropyl alcohol.
dichloroisopropyl alcohol
SYN: dichlorohydrin.
dichlorophen
Used topically as a fungicide and bactericide, and internally in the treatment of infections by tapeworms of humans and domestic animals.
dichlorophenarsine hydrochloride
(3-Amino-4-Hydroxyphenyl)dichloroarisine hydrochloride, formerly used as an arsenical antisyphilitic.
dichlorovos
SYN: dichlorvos.
dichlorphenamide
A carbonic anhydrase inhibitor with actions similar to those of acetazolamide.
dichlorvos
An anthelmintic in veterinary and human medicine. SYN: dichlorovos.
dichorial, dichorionic
Showing evidence of two chorions. [G. di-, two, + chorion]
dichotic
1. SYN: dichotomous. 2. Simultaneous presentation of a different sound to each ear.
dichotomous
Denoting or characterized by dichotomy. SYN: dichotic (1).
dichotomy
Division into two parts. [G. dichotomia, a cutting in two, fr. dicha, in two, + tome, a cutting]
dichroic
Relating to dichroism.
dichroism
The property of seeming to be differently colored when viewed from emitted light and from transmitted light. [G. di-, two, + chroa, color] - circular d. (CD) the change from ...
dichromat
An individual with dichromatism.
dichromate
A compound containing the radical Cr2O7=.
dichromatic
1. Having or exhibiting two colors. 2. Relating to dichromatism (2).
dichromatism
1. The state of being dichromatic (1). 2. The abnormality of color vision in which only two of the three retinal cone pigments are present, as in protanopia, deuteranopia, and ...
dichromatopsia
SYN: dichromatism (2). [G. di-, two, + chroma, color, + opsis, vision]
dichromic
Having, or relating to, two colors.
dichromophil, dichromophile
Taking a double stain; denoting a tissue or cell taking both acid and basic dyes in different parts. [G. di-, two, + chroma, color, + philos, fond]
Dick
George Frederick, U.S. internist, 1881–1967. See D. method, D. test, D. test toxin. Gladys R.H., U.S. internist, 1881–1963. See D. method, D. test, D. test toxin.
Dickens
Frank, British biochemist, *1899. See D. shunt, Warburg-Lipmann-D.-Horecker shunt.
diclofenac
One of several nonsteroidal anti-inflammatory drugs used in the treatment of rheumatic disorders such as rheumatoid arthritis; also used in osteoarthritis and other conditions. ...
dicloxacillin sodium
A semisynthetic penicillin resistant to penicillinase.
DICOM
Abbreviation for Digital Imaging and Communications in Medicine, a joint standard of the American College of Radiology and National Equipment Manufacturers Association; specifies ...
dicophane
SYN: dichlorodiphenyltrichloroethane.
dicoria
SYN: diplocoria. [G. di-, two, + kore, pupil]
dicotyledon
Plant (shrub, herb, or tree) whose seeds consist of two cotyledons, i.e., the primary or rudimentary leaf of the embryo of seed plants.
dicrocoeliosis
Infection of animals and, rarely, humans with trematodes of the genus Dicrocoelium.
Dicrocoelium
A genus of digenetic trematodes inhabiting the bile ducts and gallbladder of herbivores. The species D. dentriticum ( lancet fluke) is rarely found in humans, but is an ...
dicrotic
Relating to dicrotism. [G. dikrotos, double-beating]
dicrotism
That form of the pulse in which a double beat can be appreciated at any arterial pulse for each beat of the heart; due to accentuation of the dicrotic wave. [G. di-, two, + ...
dicta-
Prefix used to signify two hundred. [G.]
dictyoma
A benign tumor of the ciliary epithelium with a netlike structure resembling embryonic retina. [G. dikyton, net (retina), + -oma, tumor]
dictyosome
SYN: Golgi apparatus. [G. diktyon, net, + -some]
dictyotene
The state of meiosis at which the oocyte is arrested during the several years between late fetal life and menarche. [G. diktyon, net, + tainia, band]
dicumarol
An anticoagulant that inhibits the formation of prothrombin in the liver. Acts as an antagonist of vitamin K; discovered as the causative agent in spoiled hay, which produced ...
dicyclomine hydrochloride
An anticholinergic agent.
dicysteine
SYN: cystine.
Did not attend (DNA)
In the UK, DNA is an abbreviation for "did not attend." (In the US, the term used for a patient who missed an appointment is "no-show.")
didactic
Instructive; denoting medical teaching by lectures or textbooks, as distinguished from clinical demonstrations with patients or laboratory exercises. [G. didaktikos, fr. didasko, ...
didactylism
Congenital condition of having only two fingers on a hand or two toes on a foot. [G. di-, two, + daktylos, finger or toe]
didelphic
Having or relating to a double uterus. [G. di-, two, + delphys, womb]
Didelphis
A genus of marsupials, commonly called opossums, that serve as reservoir hosts of Trypanosoma cruzi. D. marsupialis is the common North American variety; D. paraguayensis is a ...
dideoxyadenosine
An antiviral agent used in the treatment of AIDS, similar to DDC.
dideoxycytidine
Pyrimidine nucleoside analog with antiviral activity; used in the treatment of AIDS.
dideoxyinosine
Antiviral agent; has been used in treatment of AIDS.
DIDMOD
An acronym for Wolfram syndrome, which comprises diabetes insipidus, diabetes mellitus, optic atrophy, and deafness.
didym-, didymo-
The didymus, testis. [G. didymos, twin]
didymus
SYN: testis. [G. didymos, a twin, pl. didymoi, testes]
die
In dentistry, the positive reproduction of the form of a prepared tooth in any suitable hard substance, usually in metal or specially prepared artificial stone. SEE ALSO: ...
dieb. alt.
Abbreviation for L. diebus alternis, every other day.
diecious
Denoting animals or plants that are sexually distinct, the individuals being of one or the other sex. [G. di-, two, + oikia, house]
Dieffenbach
Johann F., German surgeon, 1792–1847.
Diego blood group, Di blood group
See Blood Groups appendix.
diel
Term frequently used synonymously with diurnal (2) or circadian. [irreg., fr. L. dies, day]
dieldrin
A chlorinated hydrocarbon used as an insecticide; may cause toxic effects in persons and animals exposed to its action through skin contact, inhalation, or food contamination. ...
dielectrography
SYN: impedance plethysmography.
dielectrolysis
SYN: electrophoresis.
Diels
Otto, German chemist and Nobel laureate, 1876–1954. See D. hydrocarbon.
diencephalohypophysial
Relating to the diencephalon and hypophysis.
diencephalon
The caudal part of the prosencephalon composed of the epithalamus, thalamus, and hypothalamus. [G. dia, through, + enkephalos, brain]
diener
A laboratory worker who assists in cleaning; most commonly applied to laboratory workers who assist in the performance of autopsies and maintenance of morgues. [Ger. D., ...
dienestrol
An estrogenic agent. SYN: estrodienol.
Dientamoeba fragilis
A species of small amebalike flagellates, formerly considered a true ameba, now recognized as an ameboflagellate related to Trichomonas, parasitic in the large intestine of ...
dieresis
SYN: solution of continuity. [G. diairesis, a division]
dieretic
1. Relating to dieresis. 2. Dividing; ulcerating; corroding.
Diesel exhaust
The exhaust generated by diesel engines. This exhaust is a complex mixture of combustion products of diesel fuel. The exact composition depends on the type of engine, the speed ...
diesterase
See phosphodiesterases.
diestrous
Pertaining to diestrus.
diestrus
A period of sexual quiescence intervening between two periods of estrus. [G. dia, between, + oistros, desire]
diet
1. Food and drink in general. 2. A prescribed course of eating and drinking in which the amount and kind of food, as well as the times at which it is to be taken, are regulated ...
dietary
Relating to the diet.
Dieterle stain
See under stain.
dietetic
1. Relating to the diet. 2. Descriptive of food that, naturally or through processing, has a low caloric content.
dietetics
The practical application of diet in the prophylaxis and treatment of disease.
diethadione
An analeptic.
diethanolamine
Used as an emulsifier and as a dispersing agent in cosmetics and pharmaceuticals. SYN: diethylolamine.
diethazine
An anticholinergic agent.
diethyl
A compound containing two ethyl radicals.
diethyl ether
A flammable, volatile organic solvent formerly widely used in surgical procedures; was used as an inhalation anesthetic; shortcomings include: irritating vapor, slow onset and ...
diethylcarbamazine citrate
An effective microfilaricide, although relatively ineffective against the adult filariae.
diethylene glycol
An organic solvent chemically related to ethylene glycol. Upon metabolic conversion it becomes oxalic acid, which is toxic to the kidney. A sweet, viscous liquid that was used ...
diethylenediamine
SYN: piperazine.
diethylenetriamine pentaacetic acid
An important chelating agent used in therapy ( e.g., in therapy for lead poisoning), and in metal-containing diagnostic agents for magnetic resonance imaging and nuclear ...
diethylolamine
SYN: diethanolamine.
diethylpropion hydrochloride
A sympathomimetic drug resembling amphetamine in its actions and used as an appetite suppressant. Increases blood pressure, heart rate.
Diethylstilbestrol
The earliest synthetic (man-made) form of the hormone estrogen. Diethylstilbesterol (DES) was once widely prescribed to prevent miscarriages and premature births. Its usage was ...
diethyltoluamide
An insect repellent.
diethyltryptamine
A hallucinogenic agent similar to dimethyltryptamine.
dietitian
An expert in dietetics.
Dietl
Józef, Polish physician, 1804–1878. See D. crisis.
Dieuaide diagram
See under diagram.
Dieulafoy
Georges, French physician, 1839–1911. See D. erosion.
difarnesyl group
A 30-carbon open chain hexaisoprenoid hydrocarbon radical; occurs as a side chain in vitamin K2.
difenoxin
An antidiarrheal agent with actions similar to those of diphenoxylate. SYN: difenoxylic acid.
difenoxylic acid
SYN: difenoxin.
difference
The magnitude or degree by which one quality or quantity differs from another of the same kind. - alveolar-arterial oxygen d. the d. or gradient between the partial pressure of ...
differential
Relating to, or characterized by, a difference; distinguishing. [L. dif-fero, to carry apart, differ, fr. dis, apart] - threshold d. SYN: d. threshold.
Differential white cell count
The proportions of the different types of white cells in the blood, usually split into the different types of granulocytes, lymphocytes, monocytes, eosinophils, and basophils. The ...
differentiated
Having a different character or function from the surrounding structures or from the original type; said of tissues, cells, or portions of the cytoplasm.
Differentiation
1 The process by which cells become progressively more specialized; a normal process through which cells mature. This process of specialization for the cell comes at the expense ...
Differentiation therapy
An approach to the treatment of advanced or aggressive malignancies in which the malignant cells are treated so that they can resume the process of maturation and ...
diffluence
The process of becoming fluid. [L. dif-fluo, to flow in different directions, dissolve]
diffraction
Deflection of the rays of light from a straight line in passing by the edge of an opaque body or in passing an obstacle of about the size of the wavelength of the light. [L. ...
diffraction grating
A variety of filter composed of lined grooves in a thin layer of aluminum-copper alloy on a glass surface; used in spectrophotometers to disperse light into a spectrum. See ...
diffusate
SYN: dialysate. [L. dif-fundo, pp. -fusus, to pour in different directions]
diffuse
1. (di-fuz′)To disseminate; to spread about. 2. (di-fus′)Disseminated; spread about; not restricted. [L. dif-fundo, pp. -fusus, to pour in different directions]
Diffuse degeneration of cerebral gray matter with hepatic cirrhosis, Alpers
A progressive disease of the nervous system characterized by spasticity (tightness), myoclonus and dementia and by liver problems with jaundice and cirrhosis. This disorder, ...
Diffuse idiopathic skeletal hyperostosis (DISH)
A form of degenerative arthritis characteristically associated with flowing calcification along the sides of the vertebrae of the spine and commonly with inflammation (tendinitis) ...
Diffuse toxic goiter
Graves disease, the most common cause of hyperthyroidism (overactivity of the thyroid gland), with generalized diffuse overactivity ("toxicity") of the entire thyroid gland which ...
diffusible
Capable of diffusing.
diffusion
1. The random movement of molecules or ions or small particles in solution or suspension under the influence of brownian ( thermal) motion toward a uniform distribution ...
diflorasone diacetate
An anti-inflammatory corticosteroid used in topical preparations.
diflucortolone
A synthetic glucocorticoid steroid analog.
diflunisal
A salicyclic acid derivative with anti-inflammatory, analgesic, and antipyretic actions used in chronic disorders such as rheumatoid arthritis and osteoarthritis.
digametic
SYN: heterogametic.
digastric
1. Having two bellies; denoting especially a muscle with two fleshy parts separated by an intervening tendinous part. SYN: biventral. See d. (muscle). 2. Relating to the d. ...
digastricus
1. SYN: digastric. 2. Denoting the musculus d.. [L.]
Digenea
Subclass of parasitic flatworms (class Trematoda) characterized by a complex life cycle involving developmental multiplying stages in a mollusk intermediate host, an adult ...
digenesis
Reproduction in distinctive patterns in alternate generations, as seen in the nonsexual ( invertebrate) and the sexual (vertebrate) cycles of digenetic trematode parasites. [G. ...
digenetic
1. Pertaining to or characterized by digenesis. SYN: heteroxenous. 2. Pertaining to the d. fluke.
DiGeorge
Angelo M., U.S. pediatrician, *1921. See D. syndrome.
DiGeorge syndrome (DGS)
This congenital disorder is characterized by the convergence of the following three features: {{}}Low blood calcium levels: The low levels of calcium, also known as ...
digest
1. (di-jest′, di-)To soften by moisture and heat. 2. (di-jest′, di-)To hydrolyze or break up into simpler chemical compounds by means of hydrolyzing enzymes or chemical ...
digestant
1. Aiding digestion. 2. An agent that favors or assists the process of digestion. SYN: digestive (2).
digestion
1. The process of making a digest. 2. The mechanical, chemical, and enzymatic process whereby ingested food is converted into material suitable for assimilation for synthesis ...
digestive
1. Relating to digestion. 2. SYN: digestant (2).
Digestive system
The organs that are responsible for getting food into and out of the body and for making use of food to keep the body healthy. These organs include the salivary glands, the mouth, ...
digit
A finger or toe. SEE ALSO: finger, toe. SYN: digitus [TA], dactyl, dactylus. [L. digitus] - binary d. SYN: bit. - clubbed d. clubbing. - digits of foot toe. - primary d. of ...
digital
Relating to or resembling a digit or digits or an impression made by them; based on numeric methodology.
Digital rectal exam (DRE)
An exam to detect abnormalities that can be felt (palpated) from within the rectum. The doctor inserts a lubricated, gloved finger into the rectum and feels for anything that is ...
digitalin
A standardized mixture of digitalis glycosides used as a cardiotonic in the treatment of congestive heart failure. - crystalline d. SYN: digitoxin.
Digitalis
A genus of perennial flowering plants of the family Schrophulariaceae. D. lanata, a European species, and D. purpurea, purple foxglove, are the main sources of cardioactive ...
digitalism
The symptoms caused by digitalis poisoning or overdosage.
digitalization
Administration of digitalis by any one of a number of schedules until sufficient amounts are present in the body to produce the desired therapeutic effects.
digitate
Marked by a number of fingerlike processes or impressions. [L. digitatus, having fingers, fr. digitus, finger]
digitation
A process resembling a finger. [Mod. L. digitatio]
digitationes hippocampi
SYN: foot of hippocampus. [Mod. L. pl. of digitatio]
digiti
Plural of digitus. [L.]
digitin
SYN: digitonin.
digitonin
1. A steroid glycoside obtained from Digitalis purpurea that has no cardiac action; used as a reagent in the determination of plasma cholesterol and steroids having a 3-hydroxyl ...
digitoxigenin
The aglycon derived from digitoxin; can be prepared by refluxing digitoxin in a mixture of water, alcohol, and hydrochloric acid.
digitoxin
A cardioactive glycoside obtained from the leaves of Digitalis purpurea; it is more completely absorbed from the gastrointestinal tract than is digitalis. Largely eliminated by ...
digitoxose
The sugar moiety obtained by mild acid hydrolysis of the glycosides digitoxin, gitoxin, and digoxin. The hydrolysis yields 3 moles of d. for each mole of the respective ...
digitus
SYN: digit. [L.] - d. anularis [TA] SYN: ring finger. - d. auricularis SYN: little finger. - digiti hippocratici obsolete term for clubbed digits or fingers. See clubbing. - d. ...
diglossia
A developmental condition that results in a longitudinal split in the tongue. See bifid tongue. [G. di-, two, + glossa, tongue]
diglyceride lipase
SYN: lipoprotein lipase.
diglycocoll hydroiodide-iodine
Two moles of diglycocoll hydroiodide combined with two atomic weights of iodine; an antibacterial agent used in tablet form to disinfect drinking water.
dignathus
A malformed fetus with a double mandible. SYN: augnathus. [G. di-, two, + gnathos, jaw]
digoxigenin
The aglycon of digoxin that is joined by 3 moles of digitoxose to form the glycoside, digoxin.
digoxin
A cardioactive steroid glycoside obtained from Digitalis lanata. Largely eliminated by the kidneys.
digyny, digynia
Fertilization of a diploid ovum by a sperm, which results in a triploid zygote. Cf.:diandry. [di- + G. gyne, woman]
diheterozygote
An individual heterozygous at two loci of interest, especially in genetic linkage analysis.
dihybrid
The offspring of parents differing in two characters. [G. di-, two, + L. hybrida, offspring of a tame sow and a wild boar]
dihydralazine
An antihypertensive agent.
dihydrate
A compound with two molecules of water of crystallization.
dihydrazone
SYN: osazone.
dihydro-
Prefix indicating the addition of two hydrogen atoms. [G. di, two + hydor, water]
dihydro-orotase
An enzyme catalyzing ring closure of N-carbamoyl-l-aspartate to form l-5,6-dihydroorotate and water; an enzyme in pyrimidine biosynthesis. SYN: carbamoylaspartate dehydrase.
dihydro-orotate
l-5,6-Dihydroorotate; an intermediate in the biosynthesis of pyrimidines.
dihydroascorbic acid
SYN: l-gulonolactone.
dihydrobiopterin
Precursor to tetrahydrobiopterin, a required cofactor for a number of enzymes, including the biosynthesis of l-tyrosine; the inability to synthesize d. can result in a form of ...
dihydrocodeine tartrate
An analgesic derivative of codeine, about one-sixth as potent as morphine; a narcotic antitussive.
dihydrocodeinone
SYN: hydrocodone.
dihydrocortisone
A metabolite of cortisone, reduced at the 4,5 double bond.
dihydroergocornine
An ergot alkaloid derivative prepared by the hydrogenation of ergocornine and less toxic than the latter. See dihydroergotoxine mesylate.
dihydroergocristine
An ergot alkaloid derivative prepared by the hydrogenation of ergocristine and less toxic than the latter. See dihydroergotoxine mesylate.
dihydroergocryptine
An ergot alkaloid derivative prepared by the hydrogenation of ergocryptine and less toxic than the latter. See dihydroergotoxine mesylate.
dihydroergotamine
An ergot alkaloid derivative prepared by the hydrogenation of ergotamine; used in the treatment of migraine; less toxic and less oxytocic than ergotamine.
dihydroergotoxine mesylate
A mixture of dihydroergocornine methanesulfate, dihydroergocristine methanesulfate, and dihydroergocryptine methane sulfate; used as an α-adrenergic blocking agent for relief ...
dihydrofolate reductase
An enzyme reversibly oxidizing tetrahydrofolate to 7,8-dihydrofolate with NADP+. A crucial enzyme in one-carbon metabolism; used as a marker of drug resistance to methotrexate. ...
dihydrogen
SYN: hydrogen (2).
dihydrolipoamide dehydrogenase
A flavoenzyme oxidizing dihydrolipoamide at the expense of NAD+; completes the oxidative decarboxylation of pyruvate; a part of several enzyme complexes ( e.g., ...
dihydrolipoamide S-acetyltransferase
An enzyme catalyzing the transfer of an acetyl grout from S6-acetyldihydrolipoamide to coenzyme A. A part of many enzyme complexes ( e.g., pyruvate dehydrogenase complex). SYN: ...
dihydrolipoic acid
Reduced lipoic acid, formed by cleavage of the —S—S— bond as a result of the acceptance of two hydrogens. Cf.:lipoic acid.
dihydromorphinone hydrochloride
SYN: hydromorphone hydrochloride.
dihydropteridine reductase
An enzyme that catalyzes the reversible formation of tetrahydrobiopterin from dihydrobiopterine using NADPH; a deficiency of this enzyme can result in malignant ...
dihydropteroic acid
An intermediate in the formation of folic acid; a compound of 6-hydroxymethylpterin and p-aminobenzoic acid, the combining of which is inhibited by sulfonamides.
dihydropyrimidine dehydrogenase
An enzyme in pyrimidine biosynthesis that reacts 5,6-dihydrouracil with NADP+ to form uracil and NADPH; it also acts on dihydrothymine; a deficiency of this enzyme can result ...
dihydrostreptomycin
An aminoglycoside antibiotic similar in action to streptomycin but with a higher risk of ototoxicity.
dihydrotachysterol
See tachysterol.
dihydrotestosterone
SYN: stanolone.
dihydrouracil
5,6-D.; a reduction product of uracil and one of the intermediates of uracil catabolism.
dihydrouracil dehydrogenase
SYN: dihydropyrimidine dehydrogenase.
dihydrouridine
Uridine in which the 5,6-double bond has been saturated by addition of two hydrogen atoms; a rare constituent of transfer ribonucleic acid s.
dihydroxy-
Prefix denoting addition of two hydroxyl groups; as a suffix, becomes -diol.
dihydroxyacetone
HOCH2–CO–CH2OH; 1,3-dihydroxy-2-propanone; glycerone; the simplest ketose. SYN: glycerulose. - d. phosphate ( DHAP) one of the intermediates in the glycolytic pathway and in ...
dihydroxyaluminum aminoacetate
Basic aluminum glycinate, a basic aluminum salt of aminoacetic acid containing small amounts of aluminum hydroxide and aminoacetic acid; used as an antacid in ...
diiodide
A compound containing two atoms of iodine per molecule.
diiodo-
Prefix indicating two atoms of iodine. [G. di, + ioeides, violet flower color]
diiodohydroxyquin
C9H5I2NO; an antiprotozoal agent, used in the treatment of intestinal amebiasis. SYN: diodoquin.
diiodotyrosine
An intermediate in the biosynthesis of thyroid hormone.
diisopromine
A cholagogue. SYN: disopromine.
diisopropyl fluorophosphate
SYN: isofluorphate.
diisopropyl iminodiacetic acid
A radiopharmaceutical labeled with 99mTc, used for cholescintigraphy. SYN: disofenin.
diketohydrindylidene-diketohydrindamine
The colored product formed in the reaction of an α-amino acid and ninhydrin (triketohydrindene hydrate); a reaction used in the quantitative assay of α-amino acid s.
diketone
A molecule containing two carbonyl groups; e.g., acetylacetone (CH3COCH2COCH3).
diketopiperazines
A class of organic compounds with a closed ring structure formed from two α-amino acid s by the joining of the α-amino group of each to the carboxyl group of the other, with ...
dil.
Abbreviation for L. dilue, dilute, or L. dilutus, diluted.
dilaceration
Displacement of some portion of a developing tooth which is then further developed in its new relation, resulting in a tooth with sharply angulated root(s). [L. di-lacero, pp. ...
dilatancy
An increasing viscosity with increasing rate of shear accompanied by volumetric expansion. [L. dilato, to dilate]
Dilatate
To enlarge or expand. For example, to dilatate the eye is to enlarge the pupil temporarily with special (mydriatic) eye drops. This procedure allows the eye care specialist to ...
Dilatation
The process of enlargement or expansion. For example, dilatation of the eye is the process by which the pupil is temporarily enlarged with special (mydriatic) eye drops. This ...
Dilatation and curettage
: A minor operation in which the cervix is expanded enough (dilatation) to permit the cervical canal and uterine lining to be scraped with a curet (or curette), an instrument ...
dilatator
SYN: dilator.
Dilate
To stretch or enlarge. It comes from the Latin verb "dilatare" meaning "to enlarge or expand." * * * To perform or undergo dilation.
Dilating
The widening and opening of the cervix caused by uterine contractions.
Dilation
The process of enlargement or expansion. The word "dilatation" means the same thing. Both come from the Latin "dilatare" meaning "to enlarge or ...
dilation and curettage
Dilation of the cervix and curettement of the endometrium.
dilation and evacuation
Dilation of the cervix and removal of the products of conception.
Dilation, pupil (test)
This examination enables your eye care professional to see more of your retina, the light-sensitive layer of tissue at the back of your eye. Dilating (widening) the pupil permits ...
Dilator
: A device used to stretch or enlarge an opening. Patients with scarring of the muscular tube through which food passes from the throat to the stomach (esophagus) can require a ...
dildo, dildoe
An artificial penis; an object having the approximate shape and size of an erect penis, and commonly made of wood, plastic, or rubber; utilized for sexual pleasure.
dilemma
masking d. a problem encountered in establishing the bone conduction thresholds in severe bilateral conductive hearing loss, in which the amount of masking of the nontest ear ...

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