/ Thesaurus / G Synonyms of genus spirochaeta Find synonyms for: Noun1. Spirochaeta, genus Spirochaeta, bacteria genususage: the type genus of the family Spirochaetaceae; a bacterium that is flexible, undulating, and chiefly aquaticWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: blanch Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language