/ Thesaurus / G Synonyms of genus bacillus Find synonyms for: Noun1. genus Bacillus, bacteria genususage: type genus of the Bacillaceae; includes many saprophytes important in decay of organic matter and a number of parasitesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language