/ Dictionary / Index B beach pea: Meaning and Definition of Find definitions for: beach' pea" Pronunciation: [key] either of two plants of the legume family, Lathyrus japonicus, of seashores of the North Temperate Zone, or L. littoralis, of the temperate western coast of North America, both having oblong leaves and clusters of pealike flowers. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. beachmaster beach plum Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language