/ Dictionary / Index H hyacinth bean: Meaning and Definition of Find definitions for: hy'acinth bean" Pronunciation: [key] an Old World tropical vine, Dolichos lablab, of the legume family, having purple or white flowers and black or white seeds in a papery, beaked pod. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. hyacinth hyacinthin Related Content Daily Word Quiz: diligent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language