/ Dictionary / Index I idocrase: Meaning and Definition of Find definitions for: i•do•crase Pronunciation: (ī'du-krās", id'u-), [key] — n. Mineral. vesuvianite. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: idocrase (Thesaurus) Ido idol Related Content Daily Word Quiz: pristine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language