| azotic | <chemistry> Pertaining to azote, or nitrogen; formed or consisting of azote; nitric; as, azotic gas; azotic acid. Source: Websters Dictionary (01 Mar 1998) |
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| azotite | <chemistry> A salt formed by the combination of azotous, or nitrous, acid with a base; a nitrite. Source: Websters Dictionary (01 Mar 1998) |
| azotobacter | A genus of gram-negative, aerobic bacteria found in soil and water. Its organisms occur singly, in pairs or irregular clumps, and sometimes in chains of varying lengths. (12 Dec 1998) |
| azotobacter vinelandii | A species of gram-negative, aerobic bacteria first isolated from vineland, new jersey. Ammonium and nitrate are used as nitrogen sources by this bacterium. (12 Dec 1998) |
| azotobacteraceae | A family of motile, gram-negative bacteria found in soil and water and capable of fixing atmospheric nitrogen. (12 Dec 1998) |
| azotometer | <chemistry> An apparatus for measuring or determining the proportion of nitrogen; a nitrometer. Source: Websters Dictionary (01 Mar 1998) |
| azotous | Nitrous; as, azotous acid. Source: Websters Dictionary (01 Mar 1998) |
| azoturia | An increased elimination of urea in the urine. Origin: azo-(azote) + G. Ouron, urine Azoturia of horses, an afebrile disease of horses, characterised by massive muscle degeneration, a rapidly developing paralysis of the hind legs, and myoglobinuria; onset is sudden, usually appearing shortly after the horse has returned to work after a few days' rest. Synonym: black water, haemoglobinaemia paralytica, Monday morning sickness, paralytic myoglobinuria. (05 Mar 2000) |
| azovan blue | <chemical> 6,6'-((3,3'-dimethyl(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis (4-amino-5-hydroxy-1,3-naphthalenedisulfonic acid) tetrasodium salt. An azo dye used in blood volume and cardiac output measurement by the dye dilution method. It is very soluble, strongly bound to plasma albumin, and disappears very slowly. Pharmacological action: dyes. Chemical name: 1,3-Naphthalenedisulfonic acid, 6,6'-((3,3'-dimethyl(1,1'-biphenyl)-4,4'-diyl)bis(azo))bis(4-amino-5-hydroxy-, tetrasodium salt (12 Dec 1998) |
| azoxy procarbazine oxidase | <enzyme> does not require NADP for action or azoxyprocarbazine, but acts as a nad dependent aldehyde dehydrogenase for propionaldehyde Registry number: EC 1.2.1.- Synonym: azoxy 1 pcz oxidase, azoxy 2 pcz oxidase, azoxy 3 pcz oxidase (26 Jun 1999) |
| azoxymethane | <chemical> A potent carcinogen and neurotoxic compound. It is particularly effective in inducing colon carcinomas. Pharmacological action: carcinogens. Chemical name: Diazene, dimethyl-, 1-oxide (12 Dec 1998) |
| AZT | <drug> A nucleoside analogue used to slow replication of HIV AZT is approved for the initial treatment of HIV infection. AZT is increasingly administered in combination with other antiviral drugs, especially 3TC (a combination that is under consideration by the FDA as another initial treatment regimen for HIV) as well as ddC (an FDA-approved combination for persons with progressive disease and CD4 cell counts below 300). Possible side effects include bone marrow suppression leading to anaemia, leukopenia or neutropenia nausea, muscle weakness and headaches. (09 Oct 1997) |
| Aztec ear | An auricle with the lobule absent. (05 Mar 2000) |
| aztobacter | <bacteria> Aztobacter is a species of large, oval, aerobic Gram-negative bacteria that can fix atmospheric nitrogen if they have an energy source (often a carbohydrate) available. (09 Oct 1997) |
| aztreonam | <chemical> A monocyclic beta-lactam antibiotic originally isolated from chromobacterium violaceum. It is resistant to beta-lactamases and is used in gram-negative infections, especially of the meninges, bladder, and kidneys. It may cause a superinfection with gram-positive organisms. Pharmacological action: monobactams. Chemical name: Propanoic acid, 2-(((1-(2-amino-4-thiazolyl)-2-((2-methyl-4-oxo-1-sulfo-3-azetidinyl)amino)-2-oxoethylidene)amino)oxy)-2-methyl-, (2S-(2alpha,3beta(Z)))- (12 Dec 1998) |