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Слова на букву (2,4-ance (2629)

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alkavervir
A mixture of alkaloids obtained by the selective extraction of Veratrum viride with various organic solvents; used orally or parenterally as a hypotensive agent.
alkene
An acyclic hydrocarbon containing one or more double bonds; e.g., ethene, propene. SYN: olefin.
alkenyl
The radical of an alkene.
alkide
SYN: alkyl (2).
alkyl
1. A hydrocarbon radical of the general formula CnH2n+1. 2. A compound, such as tetraethyl lead, in which a metal is combined with a. radicals. SYN: alkide. - arylated a. SYN: ...
alkylamine
An alkane containing an —NH2 group in place of one H atom; e.g., ethylamine.
alkylation
Substitution of an alkyl radical for a hydrogen atom; e.g., introduction of a side chain into an aromatic compound.
ALL
Acute lymphoblastic leukemia, also called acute lymphocytic leukemia, an acute rapidly progressive form of leukemia characterized by the presence in the blood and bone marrow of ...
all or none
See Bowditch law.
all-trans-retinal
The orange retinaldehyde resulting from the action of light on the rhodopsin of the retina, which converts the 11-cis-retinal component of the rhodopsin to all-a.retinal plus ...
allachesthesia
A condition in which a tactile sensation is referred to a point other than that to which the stimulus is applied. SEE ALSO: allochiria. [G. allache, elsewhere, + aisthesis, ...
allanto-, allant-
Allantois; allantoid; sausage. [G. allas, allantos, sausage]
allantoate deiminase
An enzyme that catalyzes the conversion of allantoic acid to ureidoglycine, NH3, and CO2.
allantochorion
Extraembryonic membrane formed by the fusion of the allantois and chorion.
allantogenesis
Formation and development of the allantois. [allanto- + G. genesis, origin]
allantoic
Relating to the allantois.
allantoic acid
Diureidoacetic acid; a degradation product of allantoin. An important source of nitrogen in plants.
allantoid
1. Sausage-shaped. 2. Relating to, or resembling, the allantois. [allanto- + G. eidos, appearance]
allantoidoangiopagus
SYN: omphaloangiopagus. See allantoidoangiopagous twins, under twin. [ allantoid + G. angeion, vessel, + pagos, fastened]
allantoin
A substance present in allantoic fluid, fetal urine, and elsewhere; also an oxidation product of uric acid and the end product of purine metabolism in animals other than humans ...
allantoinase
An enzyme (an amidohydrolase) that catalyzes the hydrolysis of allantoin to allantoic acid.
allantoinuria
The urinary excretion of allantoin; normal in most mammals, abnormal in humans. [ allantoin + G. ouron, urine]
allantois
A fetal membrane developing from the hindgut (or yolk sac, in humans). In humans it is vestigial; externally, in mammals, it contributes to the formation of the umbilical cord ...
allaxis
SYN: metamorphosis. [G. allattein, to alter]
Allele
One of the different forms of a gene that can exist at a single locus (spot on a chromosome). Also one of the different forms of any segment of a chromosome. * * * Any one of a ...
allelic
Relating to an allele. SYN: allelomorphic.
allelism
The state held in common by alleles. SYN: allelomorphism.
allelocatalysis
Self-stimulation of growth in a bacterial culture by addition of similar cells. [G. allelon, mutually, reciprocally, + catalytikos, able to dissolve]
allelocatalytic
Mutually catalytic; denoting two substances each of which is decomposed in the presence of the other.
allelochemicals
Signal substances between individuals of different species. Cf.:pheromones. [G. allelon, reciprocally, + chemical]
allelomorph
SYN: allele. [G. allelon, reciprocally, + morphe, shape]
allelomorphic
SYN: allelic.
allelomorphism
SYN: allelism.
allelotaxis, allelotaxy
Development of an organ from a number of embryonal structures or tissues. [G. allelon, reciprocally, + taxis, an arranging]
Allen
Willard Myron, U.S. gynecologist, *1904. See Corner-A. test, Corner-A. unit, A.- Masters syndrome. Edgar Van Nuys, U.S. physician, 1900–1961. See A. test. Alfred Henry, U.S. ...
Allergen
A substance that is foreign to the body and can cause an allergic reaction in certain people. For examples, pollen, dander, mold. * * * Term for an antigen that induces an ...
allergenic
SYN: antigenic.
allergic
Relating to any response stimulated by an allergen.
Allergic conjunctivitis
Inflammation of the whites of the eyes (the conjunctivae) with itching and redness of the eyes and tearing, due to allergy.
Allergic contact dermatitis
A red, itchy, weepy reaction where the skin has come into contact with a substance that the immune system recognizes as foreign, such as poison ivy, poison oak or poison sumac ...
Allergic contact eczema
Also called allergic contact dermatitis, this is a red, itchy, weepy reaction where the skin has come into contact with a substance that the immune system recognizes as foreign, ...
Allergic granulomatosis
A disease (also often called the Churg-Straus syndrome) characterized by inflammation of the blood vessels in persons with a history of asthma or allergy. The symptoms of the ...
Allergic granulomatous angiitis
A disease (also often called the Churg-Straus syndrome) characterized by inflammation of the blood vessels in persons with a history of asthma or allergy. The symptoms of the ...
Allergic rhinitis, perennial
Allergic rhinitis (hay fever) that occurs throughout the year.
Allergic rhinitis, seasonal
Allergic rhinitis (hay fever) which occurs during a specific season.
Allergic salute
The person with allergic rhinitis (hay fever) often rubs his/her nose using the index finger. This is the so-called "allergic salute." * * * A characteristic wiping or ...
Allergic vasculitis
A disease (also more commonly called the Churg-Straus syndrome) characterized by inflammation of the blood vessels in persons with a history of asthma or allergy. The symptoms ...
allergist
One who specializes in the treatment of allergies.
allergization
Active sensitization as a result of allergens being naturally or artificially brought into contact with susceptible tissues; the procedure of being allergized.
allergized
Specifically altered in reactivity; rendered capable of exhibiting one or another aspect of allergy.
allergology
The science concerned with allergic conditions.
allergosis
Any abnormal condition characterized by allergy. [ allergy + G. -osis, condition]
allergy
1. Hypersensitivity caused by exposure to a particular antigen ( allergen) resulting in a marked increase in reactivity to that antigen upon subsequent exposure, sometimes ...
Allescheria boydii
Former name for Pseudallescheria boydii. Anamorph is Scedosporium apiosperman.
allesthesia
SYN: allochiria. [G. allos, other, + aisthesis, sensation]
allethrins
Allethrolone esters of chrysanthemum-monocarboxylic acids and synthetic analogs of pyrethrins, which are pyrethrolone esters of the same acids; viscous liquids, insoluble in ...
allethrolone
An analog of pyrethrolone (2-propenyl replacing the 2,4-pentadienyl group) used in allethrins.
allied health professional
An individual trained to perform services in the care of patients other than a physician or registered nurse; includes a variety of therapy technicians ( e.g., pulmonary), ...
alligation
A rule of mixtures whereby 1) the cost of a mixture may be determined, given the proportions and prices of the several ingredients; or 2) in pharmacy, the relative amounts of ...
Allis
Oscar Huntington, U.S. surgeon, 1836–1921. See A. forceps.
alliteration
In psychiatry, a speech disturbance in which words commencing with the same sounds, usually consonants, are notably frequent. [Fr. allitération, fr. L. ad, to, + littera, letter ...
allium
A. sativum (family Liliaceae), whose bulb contains up to 0.9% of volatile irritating oil with antiseptic action; has been used as a diaphoretic, diuretic, and expectorant. SYN: ...
allo-
1. Other; differing from the normal or usual. 2. Chemical prefix formerly used with an amino acid whose side chain contains an asymmetric carbon; for example, the ...
alloalbuminemia
The autosomal dominant condition of having serum albumin of a variant type that differs in mobility on electrophoresis from the usual type A; individuals are heterozygous or ...
alloantibody
An antibody specific for an alloantigen.
alloantigen
An antigen that occurs in some, but not in other members of the same species.
allobarbital
A hypnotic with an intermediate to long duration of action.
allocentric
Characterized by or denoting interest centered in other persons rather than in one's self. Cf.:egocentric. SYN: heterocentric (2). [ allo- + G. kentron, center]
allochiria, allocheiria
A form of allachesthesia in which the sensation of a stimulus in one limb is referred to the contralateral limb. SYN: allesthesia, alloesthesia, Bamberger sign (2). [ allo- + ...
allocholesterol
An isomer of cholesterol, differing in the position of the one double bond. SYN: coprostenol.
allochroic
Changed or changeable in color; relating to allochroism.
allochroism
A change or changeableness in color. [ allo- + G. chroa, color]
allocortex
O. Vogt term denoting several regions of the cerebral cortex, in particular the olfactory cortex and the hippocampus, characterized by fewer cell layers than the isocortex; SEE ...
allodeoxycholic acid
One of the bile acids.
allodiploid
See alloploid.
allodynia
Condition in which ordinarily nonpainful stimuli evoke pain. [ allo- + G. odyne, pain]
Alloerotic
Having to do with sexual excitement toward the same sex. The opposite is heteroerotic.
alloerotism
Sexual attraction toward another person. [ allo- + G. eros, love]
alloesthesia
SYN: allochiria.
allogamy
Fertilization of the ova of one individual by the spermatozoa of another. Cf.:autogamy. [ allo- + G. gamos, marriage]
allogenic, allogeneic
Used in transplantation biology. It pertains to different gene constitutions within the same species; antigenically distinct.
allogotrophia
Growth or nourishment of one part or tissue at the expense of another part of the body. [ allo- + G. trophe, nourishment]
allograft
A graft transplanted between genetically nonidentical individuals of the same species. SYN: allogeneic graft, homograft, homologous graft, homoplastic graft.
allogroup
A term formerly used to denote a haplotype composed of closely linked allotypic markers.
allohexaploid
See alloploid.
allohydroxylysine
5-a.; a stereoisomer of 5-hydroxylysine; d-a. is the diastereoisomer of d-5-hydroxylysine.
alloimmune
Immune to an allogenic antigen. [ allo- + immune]
alloisoleucine
A stereoisomer of isoleucine; d-a. is the diastereoisomer of d-isoleucine.
alloisomer
A geometric isomer.
allokeratoplasty
Replacement of opaque corneal tissue with a transparent prosthesis, usually plastic.
allokinesis
Passive or reflex movement; nonvoluntary movement. [ allo- + G. kinesis, movement]
allolactose
A sugar, isomeric with lactose, that is the true inducer of the lac operon.
allolalia
Any speech defect, especially one caused by a cerebral disorder. [ allo- + G. lalia, talking]
allomerism
The state of differing in chemical composition but having the same crystalline form. [ allo- + G. meros, part]
allometron
An evolutionary change in form or proportion of organic beings. [ allo- + G. metron, measure]
allomones
A pheromone that induces a behavioral or physiologic change in a member of another species that is of benefit to the producer. Cf.:kairomones, pheromones. [G. allos, other, + ...
allomorphism
1. Change of shape in cells due to mechanical causes, such as flattening from pressure, or to progressive metaplasia, such as the change of bile duct cells into liver cells. 2. ...
allongement
Rarely used term for lengthening of a structure during an operation by appropriate incisions. [Fr. elongation]
allopath
1. A traditional medical physician, as distinguished from eclectic or homeopathic practitioners. 2. One who is a practitioner of allopathy. SYN: allopathist.
allopathic
Relating to allopathy.
allopathist
SYN: allopath.
Allopathy
The system of medical practice which treats disease by the use of remedies which produce effects different from those produced by the disease under treatment. MDs practice ...
allopentaploid
See alloploid.
allophanic acid
Urea carbonic acid; its amide is biuret (allophanamide). SYN: carbamoylcarbamic acid, N-carboxyurea.
allophasis
Speech that is incoherent, disordered. [ allo- + G. phasis, speech]
allophenic
Pertaining to an animal produced by combining blastomeres of different genotypes ( i.e., from different pairs of parents). SEE ALSO: mosaic. [ allo- + G. phaino, to appear, + ...
allophore
SYN: erythrophore.
allophthalmia
SYN: heterophthalmus.
alloplasia
SYN: heteroplasia. [ allo- + G. plasis, a molding]
alloplast
An inert material used to construct, reconstruct, or augment tissue. [ allo- + G. plastos, formed]
alloplasty
Repair of defects by allotransplantation.
alloploid
Relating to a hybrid individual or cell with two or more sets of chromosomes derived from two different ancestral species; depending on the number of multiples of haploid sets, ...
alloploidy
The condition of being alloploid.
allopolyploid
An alloploid having three or more haploid sets of chromosomes. [ allo- + polyploid]
allopolyploidy
The condition of being allopolyploid.
allopregnane
Original name for 5α-pregnane. See pregnane.
allopsychic
Denoting the mental processes in their relation to the outer world. [ allo- + G. psyche, mind]
allopurinol
Inhibitor of xanthine oxidase to inhibit uric acid formation; used in the treatment of gout and to retard the rapid metabolic degradation of 6-mercaptopurine.
allorhythmia
An irregularity in the cardiac rhythm that repeats itself any number of times. [ allo- + G. rhythmos, rhythm]
allorhythmic
Relating to or characterized by allorhythmia.
allose
C6H12O6; an aldohexose. d- A. is epimeric with d-glucose.
allosensitization
Exposure to an alloantigen that induces immunologic memory cells.
allosome
Obsolete term for one of the chromosomes differing in appearance or behavior from the autosomes and sometimes unequally distributed among the germ cells. [ allo- + G. soma, ...
allosteric
Pertaining to or characterized by allosterism.
allosterism, allostery
The influencing of an enzyme activity, or the binding of a ligand to a protein, by a change in the conformation of the protein, brought about by the binding of a substrate or ...
allotetraploid
See alloploid. [ allo- + tetraploid]
allotherm
SYN: poikilotherm. [ allo- + G. therme, heat]
allothreonines
Two of the four diastereoisomers of threonine, differing from the l- and d-threonines in the configuration of the hydroxyl group in the side chain.
allotope
The antigenic determinant on the constant or nonvariable region of an allotype. [ allo- + -tope]
allotopia
SYN: dystopia. [ allo- + G. topos, place]
allotransplantation
Transplantation of an allograft. SYN: homotransplantation.
allotriodontia
1. Growth of a tooth in some abnormal location. 2. Transplantation of teeth. [G. allotrios, foreign, + odous (odont-), tooth]
allotriosmia
Incorrect recognition of odors. SYN: heterosmia. [G. allotrios, foreign, + osme, smell]
allotriploid
See alloploid. [allo + triploid]
allotrope
An element in one of the allotropic forms that it may assume. [ allo- + G. tropos, a turning]
allotrophic
Having an altered nutritive value. [ allo- + G. trophe, nourishment]
allotropic
1. Relating to allotropism. 2. Denoting a type of personality characterized by a preoccupation with the reactions of others.
allotropism, allotropy
The existence of certain elements, in several forms differing in physical properties; e.g., carbon black, graphite, and diamond are all pure carbon. [ allo- + G. tropos, a ...
allotype
Any one of the genetically determined antigenic differences within a given class of immunoglobulin that occur among members of the same species. SEE ALSO: antibody. SYN: ...
allotypic
Pertaining to an allotype.
allowance
1. Permission. 2. A portion allotted. - recommended daily a. (RDA) the amount of daily nutrient intake judged to be adequate for the maintenance of good nutrition in an average ...
alloxan
An oxidation product of uric acid, 2,4,5,6-pyrimidinetetrone; administration to experimental animals causes hypoglycemia due to insulin liberation, followed by hyperglycemia due ...
alloxantin
A condensation product of two molecules of alloxan, formed in the presence of reducing agents; a diabetogenic. SYN: uroxin.
alloxuremia
The presence of purine bases in the blood. [ alloxan + G. haima, blood]
alloxuria
The presence of purine bodies in the urine. [ alloxan + G. ouron, urine]
alloy
A substance composed of a mixture of two or more metals. - chrome- cobalt alloys alloys of cobalt and chromium containing molybdenum and/or tungsten plus trace elements; used ...
allspice oil
SYN: pimenta oil.
allyl
The monovalent radical, CH2=CHCH2—. - a. alcohol a colorless liquid of pungent odor used in making resins and plasticizers; highly irritating to mucous membranes and readily ...
allylamine
A colorless liquid derived from crude oil of mustard and used in the pharmaceutical industry, e.g., in the manufacture of mercurial diuretics.
allylestrenol
A progestational agent.
allysines
Two or more six-carbon α-amino acid s connected by a carbon-carbon bond; constituents of connective tissue and other structural elements. SEE ALSO: desmin.
Almeida
Floriano Paulo de, Brazilian physician, *1898. See A. disease, Lutz-Splendore-A. disease.
Almén
August Teodor, Swedish physiologist, 1833–1903. See A. test for blood.
almond oil
A fixed oil expressed from sweet almonds, the kernels of varieties of Prunus amygdalus; used in ointments. - bitter almond oil a volatile oil from the dried ripe kernels of ...
aloe
1. The dried juice from the leaves of plants of the genus A. (family Liliaceae), from which are derived aloin, resin, emodin, and volatile oils. 2. The dried juice from the ...
aloe-emodin
The trimethyl ether of emodin; used as a laxative. See aloin, emodin. SYN: rhabarberone.
aloetin
SYN: aloin.
alogia
1. SYN: aphasia. 2. Inability to speak due to mental deficiency or an episode of dementia. [G. a- priv. + logos, speech]
aloin
A yellow crystalline principle made up of aloe-emodin and glucose, obtained from aloe; used as a laxative. SYN: aloetin, barbaloin.
Alopecia
: Baldness. There are many types of alopecia, each with a different cause. Alopecia may be localized to the front and top of the head as in common male pattern baldness. It may ...
Alopecia areata
Alopecia areata is patchy baldness (alopecia means baldness and areata means occurring in patches) which typically begins with patchy hair loss on the scalp and sometimes ...
Alopecia capitis totalis
Loss of all of the scalp hair. Alopecia means baldness and capitis refers to the head. Alopecia capitis totalis is thus total baldness of the scalp with normal hair elsewhere ...
Alopecia, traumatic
Hair loss caused by injury to the scalp. Traumatic alopecia is usually caused by grooming methods that attempt to straighten the natural kinkiness of hair in order to make the ...
alopecic
Relating to alopecia.
Alpers
Bernard J., U.S. neurologist, 1900–1981. See A. disease.
Alpers disease
A progressive disease of the nervous system characterized by spasticity (tightness), myoclonus and dementia and by liver problems with jaundice and cirrhosis. This disorder, ...
alpha
First letter of the Greek alphabet, α.
alpha amylase
A starch-splitting enzyme obtained from a nonpathogenic bacterium of the Bacillus subtilis class, used in the treatment of inflammatory conditions and edema of soft tissues ...
Alpha error
The statistical error (said to be "of the first kind" or type I) made in testing an hypothesis when it is concluded that a result is positive when it really is not. ...
Alpha interferon
The interferons are specialized proteins (lymphokines) produced by the body in response to an infection. these substances interfere with cell infection. There are 3 main classes ...
Alpha Omega Alpha
The medical honor society, the medical school equivalent of Phi Beta Kappa, in the United States and Canada. Membership is by election for distinguished academic achievement. ...
Alpha particle
A tiny mass of material composed of two protons and two neutrons. Alpha particles do not travel very far from their radioactive source. They cannot pass through a piece of paper, ...
Alpha thalassemia
A blood disorder, thalassemia is not one disease but rather a group of disorders that have a single feature in common: they all have a genetic defect in the production of ...
alpha-blocker
SYN: α-adrenergic blocking agent.
Alpha-fetoprotein (AFP)
AFP is a plasma protein that is normally produced by the fetus. It serves as the basis for some useful tests. AFP is manufactured principally in the fetus's liver and, also, in ...
Alpha-galactosidase A deficiency
Fabry disease, a genetic disorder. The enzyme alpha-galactosidase A is essential to the metabolism of molecules known as glycosphingolipids. Without the enzyme, glycosphingolipids ...
alphadione
An intravenous anesthetic containing two steroids, alfaxalone, and alfadolone acetate, dissolved in 20% polyoxyethylated castor oil.
Alphaherpesvirinae
A subfamily of Herpesviridae containing Simplexvirus and Varicellavirus.
alphaprodine
A narcotic analgesic related to meperidine; physical and psychic dependence may develop.
alphasone acetophenide
SYN: algestone acetophenide.
Alphavirus
One of the genera of the family Togaviridae that was formerly classified as part of the “group A” arboviruses and includes the viruses that cause eastern equine, western ...
alpidem
A benzodiazepine anxiolytic/sedative/hypnotic.
Alport
Arthur Cecil, South African physician, 1880–1959. See A. syndrome.
Alport syndrome
An hereditary condition characterized by kidney disease, sensorineural (nerve) deafness and sometimes eye defects. The classic disorder as described by Alport in 1927 is ...
alprazolam
A benzodiazepine minor tranquilizer used for management of anxiety disorders and panic attack; abuse may lead to habituation or addiction.
alprenolol hydrochloride
The hydrochloride salt of 1-(o-allylphenoxy)-3-(isopropylamino)propan-2-ol; a β-receptor blocking agent, used for the treatment of cardiac arrhythmias.
alprostadil
A vasodilator used for palliative therapy to temporarily maintain patency of the ductus arteriosus in neonates with congenital heart defects. SYN: prostaglandin E1.
ALS
Abbreviation for amyotrophic lateral sclerosis; antilymphocyte serum.
ALS (Amyotrophic Lateral Sclerosis)
A classic motor neuron disease. Motor neuron diseases are progressive chronic diseases of the nerves that come from the spinal cord responsible for supplying electrical ...
alseroxylon
A fat-soluble alkaloidal fraction extracted from the root of Rauwolfia serpentina, containing reserpine and other nonadrenolytic amorphous alkaloids; used as a sedative in ...
Alström
Carl-Henry, Swedish geneticist, *1907. See A. syndrome.
Alstrom syndrome
A progressive genetic disorder characterized by obesity, deafness, and visual problems in childhood and diabetes with insulin resistance (type 2 diabetes) and kidney failure in ...
ALT
Abbreviation for alanine aminotransferase.
ALT (alanine aminotransferase)
An enzyme normally present in liver and heart cells that is released into the bloodstream when the liver or heart is damaged. The blood ALT levels are elevated with liver damage ...
alt. hor.
Abbreviation for L. alternis horis, every other hour.
Altemeier
William A,, 20th century U.S. surgeon. See A. operation.
alteration
1. A change. 2. A changing; a making different. - modal a. in electric irritability, a change in the mode of response of degenerated muscle to electric stimulation, the ...
alteregoism
Identification with people of similar personality to one's own.
alternans
Alternating; often used substantively for alternation of the heart, either electrical or mechanical. Alternating; used as a noun in the sense of pulsus a.. [L.] - auditory a. ...
Alternaria
A genus of fungi easily isolated from air and considered to be a common laboratory contaminant and an allergen; occasionally pathogenic in humans.
alternation
The occurrence of two things or phases in succession and recurrently; used interchangeably with alternans. - cardiac a. the occurrence of any cardiac phenomenon every other ...
Alternative DNA splicing
Different ways of combining the DNA of a gene to create different variants of the complete protein product of that gene.
Alternative Medicine, National Center for Complementary & (NCCAM)
A part of the National Institutes of Health (NIH), this center "conducts and supports basic and applied research and training and disseminates information on complementary and ...
alternator
Mechanical apparatus with movable transparent racks to which a large number of radiographs can be attached, to enable selection and viewing in front of a stationary bank of ...
alternocular
Denoting the use of each eye separately instead of binocularly. [L. alternus, by turns, + ocular]
Alteromonas
A genus of Gram-negative bacteria with curved rods, and motile by means of a single polar flagellum; require a seawater base for growth; a cause of spoilage of poultry. - A. ...
althea
Derived from Althaea officinalis, a perennial herb which is found wild in moist places in Europe. Contains a high proportion of starches, pectin, and sugars; used as a flavor ...
Altherr
Franz. See Meyenburg-A.- Uehlinger syndrome.
Altitude illness
1. Altitude illness (or altitude sickness) is a disorder caused by being at high altitude. It commonly occurs above 8,000 feet (2,440 meters). The cause of altitude illness is a ...
Altitude sickness
1. Altitude sickness (or altitude illness) is a disorder caused by being at high altitude. It more commonly occurs above 8,000 feet (2,440 meters). The cause of altitude ...
Altitude, acclimatization to
Adjustment to changes in altitude. The main cause of altitude sickness is going too high too fast. Given time, the body can adapt to the decrease in oxygen concentration at a ...
Altitude, high
Altitude sickness occurs at high altitude. So what is high altitude? Altitude is defined on the following scale: {{}}High altitude: 8,000 - 12,000 feet (2,438 - 3,658 meters); ...
altitudinal
Relating to vertical relationships; e.g., a. hemianopsia.
Altmann
Richard, German histologist, 1852–1900. See A. fixative, A. granule, A. anilin-acid fuchsin stain, A. theory, A.- Gersh method.
altrose
An aldohexose isomeric with glucose, tallose, allose, etc. d- A. is epimeric with d-mannose.
alum
A double sulfate of aluminum and of an alkaline earth element or ammonium; chemically, an a. is any one of the markedly astringent double salts formed by a combination of a ...
alum-hematoxylin
A purple nuclear stain used in histology; a mixture of an aqueous solution of ammonium alum and an alcoholic solution of hematoxylin which is ripened or oxidized to ...
alumina
SYN: aluminum oxide. - hydrated a. SYN: aluminum hydroxide.
aluminated
Containing alum.
aluminon
The ammonium salt of aurintricarboxylic acid, so-called because of its usefulness in the detection of aluminum in biologic material, foods, etc.
aluminosis
A pneumoconiosis caused by inhalation of aluminum particles into the lungs.
aluminum
A white silvery metal of very light weight; atomic no. 13, atomic wt. 26.981539. Many salts and compounds are used in medicine and dentistry. [L. alumen, alum] - a. acetate used ...
aluminum group
Aluminum, boron, gallium, indium, and thallium.
alvei
Plural of alveus.
alveoalgia
A postoperative complication of tooth extraction in which the blood clot in the socket disintegrates, resulting in focal osteomyelitis and severe pain. SYN: alveolalgia, ...
alveolalgia
SYN: alveoalgia.
alveolar
Relating to an alveolus.
Alveolar hydatid disease (AHD)
1. A parasitic disease caused by the larval stage of a microscopic tapeworm Echinococcus multilocularis. AHD is found worldwide, mostly in northern latitudes. in central Europe, ...
alveolate
Pitted like a honeycomb. [L. alveolus, dim. of alveus, trough, hollow sac, cavity]
alveolectomy
Surgical excision of a portion of the dentoalveolar process, for recontouring of the alveolar ridge at the time of tooth removal to facilitate a dental prosthesis. [ alveolus + ...
alveoli
Plural of alveolus.
alveolingual
SYN: alveololingual.
alveolitis
1. Inflammation of lung alveoli. 2. Inflammation of a tooth socket. - acute pulmonary a. acute inflammation involving exudate into the pulmonary alveoli and impaired gas ...
alveolo-
An alveolus, the alveolar process; alveolar. [L. alveolus, a concave vessel, a bowl, a basin, fr. alveus, a trough, + -olus, small, little; akin to alvus, the belly, the ...
alveoloclasia
Destruction of the alveolus. [ alveolo- + G. klasis, breaking]
alveolodental
Relating to the alveoli and the teeth.
alveololabial
Relating to the labial or vestibular (outer) surface of the alveolar processes of the upper or lower jaw.
alveololabialis
Relating to the alveololabial groove or region. [L.]
alveololingual
Relating to the lingual (inner) surface of the alveolar process of the lower jaw. SYN: alveolingual.
alveolopalatal
Relating to the palatal surface of the alveolar process of the upper jaw.
alveoloplasty
Surgical preparation of the alveolar ridges for the reception of dentures; shaping and smoothing of socket margins after extraction of teeth with subsequent suturing to insure ...
alveoloschisis
A cleft of the alveolar process. [ alveolo- + G. schisis, cleaving]
alveolotomy
Surgical opening into a dental alveolus to allow drainage of pus from a periapical or other intraosseous abscess. [ alveolo- + G. tome, incision]
alveolus
A small cell, cavity, or socket. 1. SYN: pulmonary a.. 2. One of the terminal secretory portions of an alveolar or racemose gland. 3. One of the honeycomb pits in the wall of ...
alveoplasty
SYN: alveoloplasty.
alveus
A channel or trough. [L. tray, trough, cavity, fr. alvus, belly] - a. hippocampi [TA] SYN: a. of hippocampus. - a. of hippocampus [TA] a thin white band of fornix fibers ...
ALW
Abbreviation for arch- loop- whorl system.
alymphia
Absence or deficiency of lymph. [G. a- priv + lymph +-ia]
alymphocytosis
Absence or great reduction of lymphocytes.
alymphoplasia
Lack of development or hypoplasia of lymphoid tissue. - Nezelof type of thymic a. cellular immunodeficiency with failure of development of T cells and T-cell function. - ...
Alzheimer
Alois, German neurologist, 1864–1915. See A. dementia, A. disease, A. sclerosis.
Alzheimer disease
A progressive degenerative disease of the brain that leads to dementia. On a cellular level, Alzheimer disease is characterized by unusual helical protein filaments in nerve ...
alzyme
Union of antibody and enzyme to form a hybrid catalytic molecule.
Am
Symbol for americium.
am
Abbreviation for ammeter.
AMA
Abbreviation for American Medical Association.
AMA (American Medical Association)
The AMA's mission statement proclaims: "We are the Voice of the American Medical Profession. "We are the partnership of physicians and their professional associations ...
amacrine
1. A cell or structure lacking a long, fibrous process. 2. Denoting such a cell or structure. SEE ALSO: a. cell. [G. a- priv. + makros, long, + is (in-), fiber]
amadou
SYN: agaric. [Fr.]
Amalgam
In dentistry, an alloy of mercury, silver, tin, etc. used in dental restorations. * * * An alloy of an element or a metal with mercury. In dentistry, primarily of two types: ...
amalgamate
To make an amalgam.
amalgamation
The process of combining mercury with a metal or an alloy to form a new alloy.
amalgamator
A device for combining mercury with a metal or an alloy to form a new alloy.
Amanita
A genus of fungi, many members of which are highly poisonous. [G. amanitai, fungi] - A. muscaria a toxic species of mushroom with yellow to red pileus and white gills; it ...

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