/ Dictionary / Index C concavo-concave: Meaning and Definition of Find definitions for: con•ca•vo-con•cave Pronunciation: (kon-kā'vō-kon-kāv'), [key] — adj. concave on both sides. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: concavo-concave (Thesaurus) concavity concavo-convex Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language