/ Thesaurus / C Synonyms of c. diphtheriae Find synonyms for: Noun1. Corynebacterium diphtheriae, C. diphtheriae, Klebs-Loeffler bacillus, corynebacteriumusage: a species of bacterium that causes diphtheriaWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: mongrel Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language