| physopoda | <zoology> Same as Thysanoptera. Origin: NL, fr. Gr. A bellows + -poda. Source: Websters Dictionary (01 Mar 1998) |
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| Physopsis | A subgenus of the genus Bulinus, most species of which transmit the human blood fluke, Schistosoma haematobium, and some animal schistosomes in Africa south of the Sahara. Origin: G. Physis, growth, + opsis, aspect, appearance (05 Mar 2000) |
| physopyosalpinx | Pyosalpinx accompanied by a formation of gas in a fallopian tube. Origin: physo-+ G. Pyon, pus, + salpinx, trumpet (05 Mar 2000) |
| physostigma | The dried seed of Physostigma venenosum (family Leguminosae), a vine of western Africa; it contains the alkaloids physostigmine (eserine), eseramine, eseridine (geneserine) and physovenine; in toxic doses it causes vomiting, colic, salivation, diarrhoea, convulsions, sweating, dyspnea, vertigo, slow pulse, and extreme prostration. Synonym: Calabar bean, ordeal bean. Origin: G. Physa, bellows, + stigma, a mark, spot; so called because of the shape of the stigma (05 Mar 2000) |
| physostigmine | <chemistry> An alkaloid found in the Calabar bean (the seed of Physostigma venenosum), and extracted as a white, tasteless, substance, amorphous or crystalline; formerly called eserine, with which it was regarded as identical. Source: Websters Dictionary (01 Mar 1998) |
| physostigmine salicylate | Used by conjunctival instillation to reduce tension in glaucoma, in the treatment of postoperative intestinal atony and urinary retention, in the management of myasthenia gravis, and to counteract excessive doses of tubocurarine; also available as physostigmine sulfate, with the same uses. Synonym: eserine salicylate. (05 Mar 2000) |
| physostomi | <zoology> An order of fishes in which the air bladder is provided with a duct, and the ventral fins, when present, are abdominal. It includes the salmons, herrings, carps, catfishes, and others. Origin: NL, fr. Gr. A bellows + mouth. Source: Websters Dictionary (01 Mar 1998) |
| physostomous | <zoology> Having a duct to the air bladder. Pertaining to the Physostomi. Source: Websters Dictionary (01 Mar 1998) |
| phytanate | The anion of phytanic acid. Phytanate alpha-oxidase, An enzyme that oxidises phytanic acid, removing the carboxyl group. (05 Mar 2000) |
| phytanic acid | <chemical> 3,7,11,15-tetramethylhexadecanoic acid. A 20-carbon branched chain fatty acid. In phytanic acid storage disease (refsum disease) this lipid may comprise as much as 30% of the total fatty acids of the plasma. This is due to a phytanic acid alpha-hydroxylase deficiency. Chemical name: Hexadecanoic acid, 3,7,11,15-tetramethyl- (12 Dec 1998) |
| phytanic acid alpha-oxidase | <enzyme> May be the genetic defect in refsum's disease Registry number: EC 1.14.99.- Synonym: phytanic acid alpha-hydroxylase (26 Jun 1999) |
| phytanic acid storage disease | A genetic disorder of the fatty acid phytanic acid which accumulates and causes a number of progressive problems including polyneuritis (inflammation of numerous nerves), diminishing vision (due to retinitis pigmentosa), and wobbliness (ataxia) caused by damage to the cerebellar portion of the brain (cerebellar ataxia). (12 Dec 1998) |
| phytanoyl-CoA ligase | <enzyme> An acyl-CoA ligase found in peroxisomes of fibroblasts; it is distinct from palmitoyl-CoA ligase and lignoceroyl-CoA ligase Registry number: EC 6.2.1.- Synonym: phytanoyl-coenzyme a ligase (26 Jun 1999) |
| phytanoyl-coenzyme A hydroxylase | <enzyme> Mutations in gene pahx result in refsum disease; amino acid sequence given in second source; genbank af023462-3 Registry number: EC 1.14.- Synonym: phytanoyl-CoA hydroxylase, pahx protein, pahx gene product (26 Jun 1999) |
| phytanyl | A branched-chain hydrocarbon containing 20 carbon atoms, commonly found in the lipids of Archaea. (09 Oct 1997) |