radiolarian Hear it!

radiolarian definition

radio·lar·ian (-ler′ē ən)

noun

any of several classes of one-celled deep-sea protozoans with long, slender pseudopodia and a spiny, or solid but perforated, skeleton of silica

Etymology: < ModL Radiolaria < radiolus, dim. of L radius, ray (see radius): from the radiating pseudopodia

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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