/ Dictionary / Index A adeno-: Meaning and Definition of Find definitions for: adeno- Pronunciation: [key] a combining form meaning “gland,” used in the formation of compound words: adenovirus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. adenitis adenocarcinoma Related Content Daily Word Quiz: penchant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language