Breadcrumb Home > Dictionary > Index A adenoma: Meaning and Definition of Find definitions for: ad•e•no•ma Pronunciation: (ad"n-ō'mu), [key] — pl. -mas, -ma•ta a benign tumor originating in a secretory gland. a benign tumor of glandlike structure. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: adenoma (Thesaurus) adenology adenopathy TrendingHere are the facts and trivia that people are buzzing about. Hard Labor Current Events This Week: June 2023 Languages Spoken in Each Country of the World User's Guide to Environmental Language The Washington Monument: Facts, History & Profile LGBT Pride Month | Biographies of Notable Individuals Civilian Labor Force ✖ Related Content Daily Word Quiz: poetaster Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language