Dipetalonema perstans

[pûrstănz′]
n.
  1. A filarial worm that produces unsheathed microfilariae in the blood and lives as an adult in the peritoneal, pleural, or pericardial cavities.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.