/ Dictionary / Index G gastrulate: Meaning and Definition of Find definitions for: gas•tru•late Pronunciation: (gas'troo-lāt"), [key] — -lat•ed, -lat•ing. to undergo gastrulation. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. gastrula gastrulation 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