| pyrexia | <clinical sign> A fever or a febrile condition, abnormal elevation of the body temperature. Origin: Gr. Pyressein = to be feverish (06 Oct 1997) |
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| pyrexial | Relating to fever. (05 Mar 2000) |
| pyrexical | <medicine> Of or pertaining to fever; feverish. Source: Websters Dictionary (01 Mar 1998) |
| pyrexiophobia | <psychology> Morbid fear of fever. Origin: G. Pyrexis, feverishness, + phobos, fear (05 Mar 2000) |
| pyrgom | <chemical> A variety of pyroxene. Synonym: fassaite. Origin: Gr. A place furnished with towers, fr. A tower. Source: Websters Dictionary (01 Mar 1998) |
| pyrheliometer | <physics> An instrument for measuring the direct heating effect of the sun's rays. Origin: Gr. Fire + sun. Source: Websters Dictionary (01 Mar 1998) |
| pyribenzyl methyl sulfate | 2-(hydroxymethyl)-1,1-dimethylpiperidinium methyl sulfate benzylate;an anticholinergic agent. Synonym: pyribenzyl methyl sulfate. (05 Mar 2000) |
| pyridic | <physiology> Related to, or formed from, pyridin or its homologues; as, the pyridic bases. Source: Websters Dictionary (01 Mar 1998) |
| pyridine | <physiology> A nitrogenous base, C5H5N, obtained from the distillation of bone oil or coal tar, and by the decomposition of certain alkaloids, as a colourless liquid with a peculiar pungent odour. It is the nucleus of a large number of organic substances, among which several vegetable alkaloids, as nicotine and certain of the ptomaines, may be mentioned. See Lutidine. Origin: From Gr. Fire. Source: Websters Dictionary (01 Mar 1998) |
| pyridinolcarbamate | <chemical> A drug that has been given by mouth in the treatment of atherosclerosis and other vascular disorders, hyperlipidemias, and thrombo-emoblytic disorders. Pharmacological action: antilipaemic agents, fibrinolytic agent. Chemical name: 2,6-Pyridinedimethanol, bis(methylcarbamate) (ester) (12 Dec 1998) |
| pyridofylline | 7-(2-Hydroxyethyl)theophylline hydrogen sulfate compound with pyridoxol; a coronary vasodilator. (05 Mar 2000) |
| pyridones | Pyridine derivatives with one or more keto groups on the ring. (12 Dec 1998) |
| pyridostigmine bromide | <chemical> A cholinesterase inhibitor with a slightly longer duration of action than neostigmine. It is used in the treatment of myasthenia gravis and to reverse the actions of muscle relaxants. Pharmacological action: cholinesterase inhibitor, parasympathomimetic. Chemical name: Pyridinium, 3-(((dimethylamino)carbonyl)oxy)-1-methyl-, bromide (12 Dec 1998) |
| pyridoxal | <chemical> 3-hydroxy-5-(hydroxymethyl)-2-methyl-4- pyridinecarboxaldehyde. Chemical name: 4-Pyridinecarboxaldehyde, 3-hydroxy-5-(hydroxymethyl)-2-methyl- (12 Dec 1998) |
| pyridoxal kinase | <enzyme> An enzyme that catalyses reversibly the phosphorylation of pyridoxal in the presence of ATP with the formation of pyridoxal 5-phosphate and ADP. Pyridoxine, pyridoxamine and various derivatives can also act as acceptors. Chemical name: ATP:pyridoxal 5-phosphotransferase Registry number: EC 2.7.1.35 (12 Dec 1998) |