Logo
dictionary thesaurus

radiolarian

noun
ra·​di·​o·​lar·​i·​an | \ ˌrā-dē-ō-ˈler-ē-ən How to pronounce radiolarian (audio) \

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

Illustration of radiolarian

Illustration of radiolarian
Other Words from radiolarian Example Sentences Learn More about radiolarian

Keep scrolling for more

Other Words from radiolarian

radiolarian adjective

Examples of radiolarian in a Sentence

Recent Examples on the Web

 The organic carbon decline coincided with the disappearance of more than 50 species of radiolarians, which served as a food source for numerous marine species and whose disappearance was an indicator of a major biological crisis. — Reuters, WIRED, "Ancient Extinction Was Abrupt," 10 May 2001

First Known Use of radiolarian

1869, in the meaning defined above

Keep scrolling for more

WORD OF THE DAY

devise

play

See Definitions and Examples

Get Word of the Day daily email!