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| ra·di·o·lar·i·an [ ràydee ō lérree ən ] (plural ra·di·o·lar·i·ans) |
noun |
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| Definition: |
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microscopic ocean organism: a single-celled ocean organism with a round silica-containing shell that has the organs of movement radiating around it. Amoebas are radiolarians.
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| [Late 19th century. < modern Latin Radiolaria< radiolus "little staff, stick" < radius "staff, spoke, ray"] |
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