| picoid | <zoology> Like or pertaining to the Pici. Origin: Picus. Source: Websters Dictionary (01 Mar 1998) |
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| 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) |
| picornaviridae infections | Virus diseases caused by the picornaviridae. (12 Dec 1998) |
| picornavirus | A virus of the family Picornaviridae. (05 Mar 2000) |
| picotine | <botany> A variety of carnation having petals of a light colour variously dotted and spotted at the edges. Origin: F. Picote dotted, picked. Source: Websters Dictionary (01 Mar 1998) |
| picra | <medicine> The powder of aloes with canella, formerly officinal, employed as a cathartic. Origin: L, fr. Gr. Sharp, bitter. Source: Websters Dictionary (01 Mar 1998) |
| picramic acid | 2-Amino-4,6-dinitrophenol;red crystals sometimes found in the blood of persons poisoned with picric acid; formed as a result of partial reduction of the latter. (05 Mar 2000) |