/ Dictionary / Index I intragalactic: Meaning and Definition of Find definitions for: in•tra•ga•lac•tic Pronunciation: (in"tru-gu-lak'tik), [key] — adj. Astron. existing or occurring within a single galaxy. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. intrados intramarginal Related Content Daily Word Quiz: stringent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language