heliozoa

from WordNet (r) 3.0 (2006)

Heliozoa
    n 1: mostly freshwater protozoa [syn: {Heliozoa}, {order
         Heliozoa}]

from The Collaborative International Dictionary of English v.0.48

Heliozoa \He`li*o*zo"a\, n. pl. [NL., fr. Gr. ? the sun + zo^,on
   an animal.] (Zool.)
   An order of fresh-water rhizopods having a more or less
   globular form, with slender radiating pseudopodia; the sun
   animalcule.