/ Thesaurus / Y Synonyms of yersin Find synonyms for: Noun1. Yersin, Alexandre Yersin, Alexandre Emile Jean Yersinusage: French bacteriologist born in Switzerland; was a student of Pasteur; discovered the plague bacillus (1863-1943)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language