/ Dictionary / Index C cardiac arrest: Meaning and Definition of Find definitions for: car'diac arrest' Pronunciation: [key] — Pathol. Pathol. abrupt cessation of heartbeat. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cardiac cardiac cycle Related Content Daily Word Quiz: arid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language