Maurer's dot

Mau·rer's dot

(mou′rərz)
n.
Any of the fine granular precipitates or irregular cytoplasmic particles usually present in red blood cells infected with the trophozoites of Plasmodium falciparum.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.