/ Dictionary / Index C concha: Meaning and Definition of Find definitions for: con•cha Pronunciation: (kong'ku), [key] — pl. -chae a shell-like structure, esp. the external ear. See diag. underear. any turbinate bone, esp. in the nose. conch (def. 5). con•cha Pronunciation: (kong'ku), [key] — pl. -chae a disk, traditionally of hammered silver and resembling a shell or flower, used as decoration on belts, harness, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: concha (Thesaurus) conch conchfish Related Content Daily Word Quiz: portent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language