trochophore

trochophore
[ˈtrəʊkə(ʊ)fɔː, ˈtrɒk-]
noun
  1. (Zoology)the planktonic larva of certain invertebrates, including some molluscs and polychaete worms, having a roughly spherical body, a band of cilia, and a spinning motion
    (动)担轮幼虫
语源
  1. late 19th cent.: from Greek trokhos 'wheel' + -phore
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