radiolarian

Any of various marine protozoans of the order (or phylum) Radiolaria, having rigid siliceous skeletons and spicules.

Of or pertaining to the Radiolaria; containing or consisting of radiolarians.

Any member of the Radiolaria.

Of or pertaining to the Radiolaria.

Any of many marine amoeboid protozoa, of subclass Radiolaria, having filamentous pseudopodia; they have intricate silica skeletons

protozoa with amoeba-like bodies and radiating filamentous pseudopods