First Known Use: 1872
Dictionary
radiolaria
noun plural ra·di·o·lar·ia \ˌrā-dē-ō-ˈler-ē-ə\
Definition of RADIOLARIA
: protozoans that are radiolarians
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Origin of RADIOLARIA
New Latin, from Late Latin radiolus small sunbeam, from diminutive of Latin radius ray — more at ray
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