/ Dictionary / Index C colchicine: Meaning and Definition of Find definitions for: col•chi•cine Pronunciation: (kol'chu-sēn", -sin, kol'ku-), [key] — n. Pharm. a pale yellow, crystalline alkaloid, CHNO, the active principle of colchicum. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: colchicine (Thesaurus) Colchester colchicum 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