/ Dictionary / Index I intracardiac: Meaning and Definition of Find definitions for: in•tra•car•di•ac Pronunciation: (in"tru-kär'dē-ak"), [key] — adj. endocardial (def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. intra-atomic intracellular Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language