| Pickworth, F | <person>. See: Lepehne-Pickworth stain. (05 Mar 2000) |
|---|---|
| picloram | <chemical> A picolinic acid derivative that is used as a herbicide. Pharmacological action: herbicides. Chemical name: 2-Pyridinecarboxylic acid, 4-amino-3,5,6-trichloro- (12 Dec 1998) |
| pico- | 1. Combining form meaning small. 2 (p). Prefix used in the SI and metric systems to signify one-trillionth (10-12). Synonym: bicro-. Origin: It. Piccolo (05 Mar 2000) |
| picobirnavirus | Unclassified, bisegmented, double-stranded RNA virus isolated from the feces of humans and other animals. Some reports associate it with gastroenteritis in humans. (12 Dec 1998) |
| picogram | One-trillionth of a gram. Abbreviation: pg (05 Mar 2000) |
| picoid | <zoology> Like or pertaining to the Pici. Origin: Picus. Source: Websters Dictionary (01 Mar 1998) |
| picokatal | One trillionth of a katal (10-12 katal). Abbreviation: pkat (05 Mar 2000) |
| picolinate methyltransferase | <enzyme> Methylates picolinic acid with s-adenosyl-l-methionine; mw 70.8 kD Registry number: EC 2.1.1.- Synonym: s-adenosyl-methionine picolinic acid-n-methyltransferase (26 Jun 1999) |
| picoline | <chemistry> Any one of three isometric bases (C6H7N) related to pyridine, and obtained from bone oil, acrolein ammonia, and coal-tar naphtha, as colourless mobile liquids of strong odour. Synonym: methyl pyridine. Origin: L. Pix, picis, pitch + oleum oil + -ine. Source: Websters Dictionary (01 Mar 1998) |
| picolines | A group of compounds that are monomethyl derivatives of pyridines. (12 Dec 1998) |
| picolinic acid | Pyridine-4-carboxylic acid;an isomer of nicotinic acid. (05 Mar 2000) |
| picolinuric acid | N-Picolinoylglycine;the amide, with glycine, of picolinic acid; a hippuric acid analog in which picolinic acid, rather than benzoic acid, is conjugated with glycine and excreted. (05 Mar 2000) |
| picometer | One-trillionth of a meter. Synonym: bicron. Abbreviation: pm (05 Mar 2000) |
| picomole | One-trillionth of a mole (10-12 mole). Abbreviation: pmol (05 Mar 2000) |
| picornaviridae | <virology> A family of single-stranded RNA-containing viruses that cause hepatitisin humans. (09 Oct 1997) |