/ Dictionary / Index G grattoir: Meaning and Definition of Find definitions for: grat•toir Pronunciation: (grä-twär' Fr. gra-twar'), [key] — pl. -toirs a flaked stone implement, usually Upper Paleolithic, retouched at the end and used probably for working wood or cleaning hides; scraper. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Grattan gratuitous Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language