Ascaris lumbricoides

[lŭm′brĭ-koidēz]
n.
  1. A common roundworm that is parasitic in the intestines of humans and that causes restlessness, fever, and sometimes diarrhea.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.