/ Dictionary / Index G gray birch: Meaning and Definition of Find definitions for: gray' birch' Pronunciation: [key] a small, bushy birch, Betula populifolia, of stony or sandy areas of the eastern U.S., having grayish-white bark and triangular leaves. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. graybeard gray body Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language