Breadcrumb Home > Thesaurus > O Synonyms of ophioglossum Find synonyms for: Noun1. Ophioglossum, genus Ophioglossum, fern genususage: the type genus of the fern family OphioglossaceaeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. ✖ Related Content Daily Word Quiz: sophism Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language