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