[ zĕn′ŏp-sĭlə, zĕn′ə-sĭlə ]


A genus of fleas parasitic on rats and involved in the transmission of bubonic plague.
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 xenopsylla

  • A flea, Xenopsylla cheopis, from an infected little mammal—usually a rat—can hop from the dying rat onto a human and bite it.

  • A plague flea (Xenopsylla) has been found on an African swift.

    The Flea|Harold Russell
  • A flea killed by the disinfecting mixture at this desk was identified at the Bureau of Science as a rat flea (Xenopsylla cheopis).

    Plague|Thomas Wright Jackson