/ Dictionary / Index C cortisol: Meaning and Definition of Find definitions for: cor•ti•sol Pronunciation: (kôr'tu-sôl", -sōl"), [key] — n. one of several steroid hormones produced by the adrenal cortex and resembling cortisone in its action.. hydrocortisone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cortisol (Thesaurus) cortina cortisone 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