Vitamin

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Vitamin \Vit"a*min\ (v[imac]t"[.a]*m[i^]n), n.
     any of several organic chemical substances not synthesized by
     an animal and required in small quantities for normal
     metabolism, present in and obtained from the natural foods
     eaten by the animal. Human vitamins are also produced
     synthetically, and taken in pure form or in mixtures, as


     dietary supplements. Deficiencies of specific vitamins lead
     to certain specific disorders, such as scurvy, caused by an
     insufficiency of vitamin C (ascorbic acid).
  
     Note: Most vitamins act as coenzymes or precursors to
           coenzymes, and are not consumed for energy production
           or incorporated into structural units of the cell.
           [PJC]

From WordNet (r) 2.0 [wn]:

  vitamin
       n : any of a group of organic substances essential in small
           quantities to normal metabolism

From Moby Thesaurus II by Grady Ward, 1.0 [moby-thes]:

  39 Moby Thesaurus words for "vitamin":
     adermin, adjuvant, aneurin, antiberi-beri factor, ascorbic acid,
     axerophthol, biotin, carminative, carotene, cholecalciferol,
     choline, cobalamin, counterirritant, cryptoxanthin, cyanocobalamin,
     emmenagogue, ergocalciferol, expectorant, folic acid, hepatoflavin,
     hormone, inositol, lactoflavin, maturative, menadione,
     naphthoquinone, niacin, nicotinic acid, ovoflavin, pyridoxine,
     tocopherol, vasodilator, vitamin B, vitamin Bc, vitamin D,
     vitamin G, vitamin H, vitamin K, vitamin M