/ Dictionary / Index G gehlenite: Meaning and Definition of Find definitions for: geh•len•ite Pronunciation: (gā'lu-nīt"), [key] — n. a mineral, aluminum calcium silicate, occurring in prismatic crystals varying in color from gray-green to brown. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Gehenna Gehrig Related Content Daily Word Quiz: crockery Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language