Breadcrumb Home > Thesaurus > M Synonyms of mentum Find synonyms for: Noun 1. mentum, plant part, plant structure usage: a projection like a chin formed by the sepals and base of the column in some orchids 2. chin, mentum, feature, lineament usage: the protruding part of the lower jaw 3. mentum, body part usage: a projection below the mouth of certain mollusks that resembles a chin WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of mentum (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: contretemps Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language