/ Thesaurus / G Synonyms of genus thalarctos Find synonyms for: Noun1. Thalarctos, genus Thalarctos, mammal genususage: polar bears; in some classifications not a separate genus from UrsusWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: chicory Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language