/ Dictionary / Index G grinder: Meaning and Definition of Find definitions for: grind•er Pronunciation: (grīn'dur), [key] — n. a person or thing that grinds. a kitchen device or appliance for grinding food. a sharpener of tools. a molar tooth. See the teeth. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: grinder (Thesaurus) grindelia grindery Related Content Daily Word Quiz: cetacean Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language