Breadcrumb Home > Dictionary > Index P picture book: Meaning and Definition of Find definitions for: pic'ture book" Pronunciation: [key] a book consisting mainly or entirely of pictures, esp. one for children who have not yet learned to read. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. picture picture hat ✖ Related Content Daily Word Quiz: criticaster Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language