| propinquity | 1. Nearness in place; neighborhood; proximity. 2. Nearness in time. 3. Nearness of blood; kindred; affinity. Origin: L. Propinquitas, from propinquus near, neighboring, from prope near. Source: Websters Dictionary (01 Mar 1998) |
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| propinyl | <chemistry> A hydrocarbon radical regarded as an essential residue of propine and allied compounds. Origin: Propine + -yl. Source: Websters Dictionary (01 Mar 1998) |
| propiocortin | An endogenous polypeptide that might be a precursor to the enkephalins. Compare: proenkephalin. (05 Mar 2000) |
| propiolactone | <chemical> 2-oxetanone. Disinfectant used in vapor form to sterilise vaccines, grafts, etc. The vapor is very irritating and the liquid form is carcinogenic. Pharmacological action: anti-infective agents, local, carcinogens, disinfectants. Chemical name: 2-Oxetanone (12 Dec 1998) |
| propiolate | A salt of propiolic acid. Source: Websters Dictionary (01 Mar 1998) |
| propiolic | <chemistry> Pertaining to, or designating, an organic acid (called also propargylic acid) of the acetylene or tetrolic series, analogous to propionic acid, and obtained as a white crystalline substance. Origin: Propionic + tetrolic. Source: Websters Dictionary (01 Mar 1998) |
| propionate | <chemistry> A salt of propionic acid. Source: Websters Dictionary (01 Mar 1998) |
| propionate-3-nitronate oxidase | <enzyme> From penicillium atrovenetum; flavoprotein; catalyses the oxidation of propionate 3-nitronate in the presence of oxygen to yield malonate saemialdehyde, no2, no3 and h2o2 Registry number: EC 1.7.3.- Synonym: 3-nitropropionate oxidase (26 Jun 1999) |
| propione | <chemistry> The ketone of propionic acid, obtained as a colourless fragrant liquid. Source: Websters Dictionary (01 Mar 1998) |
| propionibacteriaceae | A family of gram-positive bacteria found in dairy products or in the intestinal tracts of animals. (12 Dec 1998) |
| propionibacterium | A genus of gram-positive, rod-shaped bacteria whose cells occur singly, in pairs or short chains, in v or y configurations, or in clumps resembling letters of the chinese alphabet. Its organisms are found in cheese and dairy products as well as on human skin and can occasionally cause soft tissue infections. (12 Dec 1998) |
| propionibacterium acnes | A bacteria isolated from normal skin, intestinal contents, wounds, blood, pus, and soft tissue abscesses. It is a common contaminant of clinical specimens, presumably from the skin of patients or attendants. (12 Dec 1998) |
| Propionibacterium propionicus | arachnia propionica |
| propionic | <chemistry> Pertaining to, derived from, or designating, an organic acid which is produced in the distillation of wood, in the fermentation of various organic substances, as glycerin, calcium lactate, etc, and is obtained as a colourless liquid having a sharp, pungent odour. Propionic acid is so called because it is the first or lowest member of the fatty acid series whose salts have a fatty feel. Origin: Proto- + Gr. Piwn fat. Source: Websters Dictionary (01 Mar 1998) |
| propionic acid | CH3CH2COOH; methylacetic acid; ethylformic acid;found in sweat. Synonym: propanoic acid. (05 Mar 2000) |