1) Actinopod 
any member of the protozoan class Heliozoea (superclass Actinopoda). Heliozoans are spherical and predominantly freshwater and are found either ... [3 related articles]
[n] - protozoa with spherical bodies and stiff radiating pseudopods
heliozoan A free-living, usually freshwater, protozoan that has a spherical shell and radiating projections. Heliozoa, or sun animalcules, are roughly spherical amoeboids with many stiff, microtubule-supported projections called axopods radiating outward from the cell surface. These give them the characteristic sun-like appearance for which they ...
noun protozoa with spherical bodies and stiff radiating pseudopods