cholecalciferol

from WordNet (r) 3.0 (2006)

cholecalciferol
    n 1: a fat-soluble vitamin that prevents rickets [syn: {vitamin
         D}, {calciferol}, {viosterol}, {ergocalciferol},
         {cholecalciferol}, {D}]

from The Collaborative International Dictionary of English v.0.48

vitamin D \vitamin D\ n.
   any of several chemically related fat-soluble vitamins that
   prevent rickets. It is found in fish-liver oils, egg yolks
   and milk. Component vitamin D2 is also called {calciferol},
   and vitamin D3 is called {cholecalciferol}.

   Syn: calciferol, ergocalciferol, cholecalciferol.
        [WordNet 1.5]