| trica | Origin: NL. <botany> An apothecium in certain lichens, having a spherical surface marked with spiral or concentric ridges and furrows. Source: Websters Dictionary (01 Mar 1998) |
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| tricalcium phosphate | Ca3(PO4)2;used as an antacid. Synonym: bone ash, bone phosphate, tertiary calcium phosphate, tricalcium phosphate, whitlockite. (05 Mar 2000) |
| tricarballylic | <chemistry> Of, pertaining to, or designating, a complex tribasic organic acid, C3H5.(CO2H)3 occurring naturally in unripe beet roots, and produced artificially from glycerin as a white crystalline substance. Origin: Pref. Tri- + carboxyl + allyl + -ic. Source: Websters Dictionary (01 Mar 1998) |
| tricarbimide | <chemistry> See Cyanuric. Origin: Pref. Tri- + carbimide. Source: Websters Dictionary (01 Mar 1998) |
| tricarboxylic acid cycle | <biochemistry> The central feaure of oxidative metabolism. Cyclic reactions whereby acetyl CoA is oxidized to carbon dioxide providing reducing equivalents (NADH or FADH2) to power the electron transport chain. Also provides intermediates for biosynthetic processes. (16 Dec 1997) |
| tricarboxylic acids | Organic compounds that are acyclic and contain three acid groups. A member of this class is citric acid which is the first product formed by reaction of pyruvate and oxaloacetate. (12 Dec 1998) |