/ Thesaurus / O Synonyms of oniscus Find synonyms for: Noun1. Oniscus, genus Oniscus, arthropod genususage: type genus of the Oniscidae; woodlice that cannot roll into a ballWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: philanthropy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language