radiolarian

radiolarian
(Zoology)()
noun
  1. a single-celled aquatic animal which has a spherical amoebalike-body with a spiny skeleton of silica. Their skeletons can accumulate as a slimy deposit on the seabed
    放射虫
  2. Three classes of the phylum Actinopoda, kingdom Protista (formerly subclass or order Radiolaria)
    辐足门3纲,原生动物界(原放射虫亚纲或放射虫目)
adjective
  1. of, relating to, or formed from radiolarians
语源
  1. late 19th cent.: from radiolaria + -an
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