Breadcrumb Home > Thesaurus > A Synonyms of agar Find synonyms for: Noun 1. agar, nutrient agar, culture medium, medium usage: any culture medium that uses agar as the gelling agent 2. agar, agar-agar, gum usage: a colloidal extract of algae; used especially in culture media and as a gelling agent in foods WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of agar (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: picaresque Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language