radiolarian

柯林斯词典

radiolarian /ˌreɪdɪəʊˈlɛərɪən/

• 1. N any of various marine protozoans constituting the order Radiolaria, typically having a siliceous shell and stiff radiating cytoplasmic projections: phylum Actinopoda (actinopods) 放射虫

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