/ Thesaurus / G Synonyms of genus euglena Find synonyms for: Noun1. genus Euglena, protoctist genususage: type genus of the family Euglenaceae: green algae with a single flagellumWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language