/ Dictionary / Index G Grignard: Meaning and Definition of Find definitions for: Gri•gnard Pronunciation: (grēn-yärd' Fr. grē-nyar'), [key] 1871–1935, French organic chemist: Nobel prize 1912. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. grig Grignard reaction Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language