/ Dictionary / Index A admass: Meaning and Definition of Find definitions for: ad•mass Pronunciation: (ad'mas"), [key] — Chiefly Brit. Chiefly Brit. —n. high-pressure marketing in which mass-media advertising is used to reach large numbers of people. —adj. characteristic of or relating to admass. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: admass (Thesaurus) adman admeasure Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language