/ Dictionary / Index P plateful: Meaning and Definition of Find definitions for: plate•ful Pronunciation: (plāt'fool), [key] — pl. -fuls. the amount that a plate will hold. a large portion or quantity: a plateful of contracts to negotiate. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: plateful (Thesaurus) plate-dog plate girder Related Content Daily Word Quiz: feline Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language