ALL meanings of radiolarian
ra·di·o·lar·i·an
R r - noun radiolarian any minute, marine protozoan of the class Radiolaria, or, in some classification schemes, the superclass Actinopoda, having an amebalike body with radiating, filamentous pseudopodia and a usually elaborate outer skeleton. 1
- noun radiolarian any of various marine protozoans constituting the order Radiolaria, typically having a siliceous shell and stiff radiating cytoplasmic projections: phylum Actinopoda (actinopods) 0
- noun radiolarian any of several classes of one-celled deep-sea protozoans with long, slender pseudopodia and a spiny, or solid but perforated, skeleton of silica 0