/ Dictionary / Index C cardiac muscle: Meaning and Definition of Find definitions for: car'diac mus"cle Pronunciation: [key] — Anat. Anat. a specialized form of striated muscle occurring in the hearts of vertebrates. the myocardium. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cardiac glycoside cardiac neurosis Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language