/hee'lee euh zoh"euhn/ , n.
1. a protozoan of the order Heliozoa, having a spherical body and radiating pseudopods.
adj.
2. Also, heliozoic /hee'lee euh zoh"ik/ . belonging or pertaining to the Heliozoa.
[ 1890-95; Heliozo ( a ) name of the group (see HELIO-, -ZOA) + -AN ]