/ Dictionary / Index H heartthrob: Meaning and Definition of Find definitions for: heart•throb Pronunciation: (härt'throb"), [key] — n. a rapid beat or pulsation of the heart. a passionate or sentimental emotion. sweetheart. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: heartthrob (Thesaurus) heart tamponade heart-to-heart Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language