/ Dictionary / Index C cortico-: Meaning and Definition of Find definitions for: cortico- Pronunciation: [key] a combining form representingin compound words: corticosteroid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. corticate corticolous Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language