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  1. horseshoe crab

    • n.
      a large marine arthropod with a domed horseshoe-shaped shell, a long tail spine, and ten legs, little changed since the Devonian.
    • noun: horseshoe crab, plural noun: horseshoe crabs

    • 更多解釋
    • IPA[ˈhôr(s)ˌSHo͞o ˌkrab]
    • n.
      a large marine arthropod with a domed horseshoe-shaped shell, a long tail-spine, and ten legs, ...

    Oxford American Dictionary