/ Dictionary / Index I ilmenite: Meaning and Definition of Find definitions for: il•men•ite Pronunciation: (il'mu-nīt"), [key] — n. a very common black mineral, iron titanate, FeTiO, occurring in crystals but more commonly massive. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ilmenite (Thesaurus) Ilmarinen ILO Related Content Daily Word Quiz: sequester Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language