/ Dictionary / Index C cementite: Meaning and Definition of Find definitions for: ce•ment•ite Pronunciation: (si-men'tīt), [key] — n. Metall. an iron carbide, FeC, a constituent of steel and cast iron, sometimes with part of its iron replaced by another metal, as manganese. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cementite (Thesaurus) cementation cementitious Related Content Daily Word Quiz: crutiny Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language