/ Thesaurus / G Synonyms of genus francisella Find synonyms for: Noun1. Francisella, genus Francisella, bacteria, bacteriumusage: a genus of Gram-negative aerobic bacteria that occur as pathogens and parasite in many animals (including humans)WordNet 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