Rhizopodea

[rī′zə-pōdē-ə]
n.
  1. A phylum of microorganisms that includes protozoa such as the ameba that move and take in nourishment by means of pseudopods.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.