/ Dictionary / Index C calciferol: Meaning and Definition of Find definitions for: cal•cif•er•ol Pronunciation: (kal-sif'u-rôl", -rol"), [key] — n. Biochem. a fat-soluble, crystalline, unsaturated alcohol, CHOH, occurring in milk, fish-liver oils, etc., produced by ultraviolet irradiation of ergosterol, and used as a dietary supplement, as in fortified milk. Also called. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: calciferol (Thesaurus) calcicole calciferous Related Content Daily Word Quiz: mongrel Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language