/ Dictionary / Index D dolomite: Meaning and Definition of Find definitions for: do•lo•mite Pronunciation: (dō'lu-mīt", dol'u-), [key] — n. a very common mineral, calcium magnesium carbonate, CaMg(CO), occurring in crystals and in masses. a rock consisting essentially or largely of this mineral. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dolomite (Thesaurus) Dolní Věstonice dolomite marble Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language