/ Dictionary / Index C cyanocobalamin: Meaning and Definition of Find definitions for: cy•a•no•co•bal•a•min Pronunciation: (sī"u-nō-kō-bal'u-min, sī-an"ō-), [key] — n. Biochem. See Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cyanocobalamin (Thesaurus) cyanobacteria cyanogen Related Content Daily Word Quiz: agitated Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language