• synonyms


(yĕr-săɴ)Alexandre Émile John 1863-1943
  1. Swiss-born French bacteriologist. His work with the diphtheria bacillus led to the development of antitoxins to neutralize pathogenic toxins.
Show More
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Examples from the Web for yersin

Historical Examples

  • It is caused by a specific bacillus isolated by Kitasato and Yersin in 1894.

    Essays In Pastoral Medicine

    Austin Malley

  • But Dr. Yersin's explanation of the Ceraunic pictures does not seem to me to be justified.

    Thunder and Lightning

    Camille Flammarion

  • The bacillus pestis was discovered by Kitasato and Yersin, working independently, in 1894.

yersin in Science


  1. French bacteriologist who, working with Émile Roux, isolated the toxin that causes the symptoms of diphtheria. Yersin later discovered the bacillus that causes bubonic plague and developed a serum to protect against it.
Show More
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.