- A genus of fleas commonly found on rodents including N. fasciatus, the northern rat flea, which infrequently transmits the plague bacillus to humans.
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 nosopsyllus
Nosopsyllus fasciatus is a cosmopolitan flea on Rattus norvegicus.