| penicillin N | cephalosporin N |
|---|---|
| penicillin O | <drug> A drug produced by growing the mold in a medium containing allylmercaptomethylacetic acid; also available as the potassium and sodium salts. Synonym: allylmercaptomethylpenicillin. (05 Mar 2000) |
| penicillin penicillium | <chemistry> Any of many natural or partly synthetic peptidoglycan. (09 Oct 1997) |
| penicillin phenoxymethyl | <chemical> (2s-(2 alpha,5 alpha,6 beta)-3,3-dimethyl-7-oxo-6-((phenoxyacetyl)amino)-4-thia-1- azabicyclo(3.2.0)heptane-2-carboxylic acid. A broad-spectrum penicillin antibiotic used orally in the treatment of mild to moderate infections by susceptible gram-positive organisms. Pharmacological action: penicillins. Chemical name: 4-Thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 3,3-dimethyl-7-oxo-6-((phenoxyacetyl)amino)-, (2S-(2alpha,5alpha,6beta))- (12 Dec 1998) |
| penicillin resistance | <microbiology, pharmacology> Nonsusceptibility of an organism to the action of penicillins. (12 Dec 1998) |
| penicillin v | <chemical> (2s-(2 alpha,5 alpha,6 beta)-3,3-dimethyl-7-oxo-6-((phenoxyacetyl)amino)-4-thia-1- azabicyclo(3.2.0)heptane-2-carboxylic acid. A broad-spectrum penicillin antibiotic used orally in the treatment of mild to moderate infections by susceptible gram-positive organisms. Pharmacological action: penicillins. Chemical name: 4-Thia-1-azabicyclo(3.2.0)heptane-2-carboxylic acid, 3,3-dimethyl-7-oxo-6-((phenoxyacetyl)amino)-, (2S-(2alpha,5alpha,6beta))- (12 Dec 1998) |
| penicillin V benzathine | Benzathine phenoxymethylpenicillin;penicillin for oral use. (05 Mar 2000) |
| penicillin V hydrabamine | Hydrabamine phenoxymethylpenicillin;a compound with preparation and uses analogous to those of penicillin G hydrabamine. (05 Mar 2000) |
| chloroprocaine penicillin O | A crystalline salt of 2-chloroprocaine and penicillin O, insoluble in water; the level of the antibiotic in the blood persists for 24 hours; its antibacterial activity is similar to that of penicillin O and G. (05 Mar 2000) |
| unit of penicillin | The penicillin activity of 0.6 ug of penicillin G. (05 Mar 2000) |
| Abbe test plate | <equipment> A long, wedge-shaped coverslip about 0.20 mm thick at one end and 0.10 to 0.12 mm at the other end coated chemically with a silver film on which are ruled horizontal lines. at each variation in thickness of 0.01 mm there are vertical lines. By means of oblique illumination and by focusing on different portions of the plate, it is possible to determine the optimum coverslip thickness for any objective and also, for microscopes with drawtubes, the tube length for best objective performance. The approximate freedom from spherical and chromatic aberrations can also be estimated. Small isolated bits of silver near the edges of the lines form good objects for the star test (05 Aug 1998) |
| acetone test | A test for ketonuria; the suspected urine is shaken up with a few drops of sodium nitroprusside, and strong ammonia water is then gently poured over the mixture; if acetone is present, a magenta ring forms at the line of contact; tablets containing sodium nitroprusside and alkali are now more commonly used. (05 Mar 2000) |
| achievement test | A standardised test used to measure acquired learning, e.g., competence in a specific subject area such as reading or arithmetic, in contrast to an intelligence test which is a useful index of potential ability or learning. (05 Mar 2000) |
| acidified serum test | Lysis of the patient's red cells in acidified fresh serum, specific for paroxysmal nocturnal haemoglobinuria. Synonym: Ham's test. (05 Mar 2000) |
| acid loading test | <nephrology> This is a test used in the diagnosis of renal tubular acidosis. The patient takes ammonium chloride capsules for 3 days to acidify the blood (lower blood pH). A sample of the urine and the blood is then collected and the results are interpreted. (27 Sep 1997) |