/ Dictionary / Index C cardia: Meaning and Definition of Find definitions for: car•di•a Pronunciation: (kär'dē-u), [key] — pl. -di•ae -di•as. an opening that connects the esophagus and the upper part of the stomach. -cardia Pronunciation: [key] a combining form occurring in compounds that denote an anomalous or undesirable action or position of the heart, as specified by the initial element: dextrocardia; tachycardia. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cardia (Thesaurus) cardi- cardiac Related Content Daily Word Quiz: ontiguous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language