| xanthopuccine | <chemistry> One of three alkaloids found in the root of the yellow puccoon (Hydrastis Canadensis). It is a yellow crystalline substance, and resembles berberine. Source: Websters Dictionary (01 Mar 1998) |
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| xanthorhamnin | <chemistry> A glucoside extracted from Persian berries as a yellow crystalline powder, used as a dyestuff. Origin: Rhamnus, the generic name of the plant bearing Persian berries. Source: Websters Dictionary (01 Mar 1998) |
| xanthorhiza | <botany> A genus of shrubby ranunculaceous plants of North America, including only the species Xanthorhiza apiifolia, which has roots of a deep yellow colour; yellowroot. The bark is intensely bitter, and is sometimes used as a tonic. Origin: Gr. Xanqos = yellow, riza = root. (09 Mar 1998) |
| xanthorhoea | <botany> A genus of endogenous plants, native to Australia, having a thick, sometimes arborescent, stem, and long grasslike leaves. See: Grass tree. Origin: Gr. Xanqos = yellow. Source: Websters Dictionary (01 Mar 1998) |
| xanthose | <chemistry> An orange-yellow substance found in pigment spots of certain crabs. Source: Websters Dictionary (01 Mar 1998) |
| xanthosine | 9-beta-d-ribosylxanthine;the deamination product of guanosine (O replacing -NH2). Synonym: xanthine ribonucleoside. Abbreviation: Xao (05 Mar 2000) |
| xanthosine 5'-monophosphate | The monophosphoric ester of xanthosine. An intermediate in GMP biosynthesis. Synonym: xanthidylic acid, xanthine nucleotide, xanthylic acid. (05 Mar 2000) |
| xanthosine 5'-triphosphate | Xanthosine with a triphosphoric acid esterified at its 5' position. (05 Mar 2000) |
| xanthosine phosphorylase | <enzyme> From E coli k-12; mw 18kda; inactivated by p-chloromercuriphenylsulfonic acid Registry number: EC 2.4.2.- Synonym: inosine-guanosine phosphorylase (26 Jun 1999) |
| xanthosis | <medicine> The yellow discolouration often observed in cancerous tumours. Origin: Gr. Xanqos = yellow. Source: Websters Dictionary (01 Mar 1998) |
| xanthospermous | <botany> Having yellow seeds. Origin: Xantho- + Gr. Sperma sperm. Source: Websters Dictionary (01 Mar 1998) |
| xanthous | <ethnology> Yellow; specifically, of or pertaining to those races of man which have yellowish, red, auburn, or brown hair. Origin: Gr. Xanqos = yellow. Source: Websters Dictionary (01 Mar 1998) |
| xanthoxylene | <chemistry> A liquid hydrocarbon of the terpene series extracted from the seeds of a Japanese prickly ash (Xanthoxylum pipertium) as an aromatic oil. See: Xanthoxylum. Source: Websters Dictionary (01 Mar 1998) |
| xanthoxylum | <botany> A genus of prickly shrubs or small trees, the bark and rots of which are of a deep yellow colour; prickly ash. The commonest species in the Northern United States is Xanthoxylum Americanum. See Prickly ash, under Prickly. Origin: NL, from Gr. Xanqos = yellow + xylon wood. Source: Websters Dictionary (01 Mar 1998) |
| xanthurenic acid | 4,8-Dihydroxyquinoline-2-carboxylic acid; 4,8-dihydroquinaldic acid;the sulfur-yellow crystals form a red compound with Millon reagent, or an intensely green one with ferrous sulfate; excreted in the urine of pyridoxine-deficient animals after the ingestion of tryptophan, and of rats fed almost exclusively with fibrin. (05 Mar 2000) |
| xanthopsia |
(xan
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| xanthosis |
(xan
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| xanthous |
(xan
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| xanthurenic acid |
(xanth
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| xanthism |
(xan
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