radiolarian
ra·di·o·lar·i·an
noun \ˌrā-dē-ō-ˈler-ē-ən\Definition of RADIOLARIAN
: any of three classes (Acantharia, Polycystina, and Phaeodaria) of usually spherical chiefly planktonic marine protozoans having radiating threadlike pseudopodia and often a siliceous skeleton of spicules
— radiolarian adjective
See Illustration of RADIOLARIAN
First Known Use of RADIOLARIAN
1875
Learn More About RADIOLARIAN
Browse
Next Word in the Dictionary: radiolarian ooze
Previous Word in the Dictionary: radiolaria
All Words Near: radiolarian
Previous Word in the Dictionary: radiolaria
All Words Near: radiolarian
Seen & Heard 
What made you want to look up radiolarian? Please tell us where you read or heard it (including the quote, if possible).
