/ Dictionary / Index E essonite: Meaning and Definition of Find definitions for: es•so•nite Pronunciation: (es'u-nīt"), [key] — n. a variety of grossularite garnet. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: essonite (Thesaurus) essoin Essonne Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language