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  1. ostracoderm

    • IPA[ɒˈstrakədəːm]

    英式

    • n.
      an early jawless fossil fish of the Cambrian to Devonian periods, having a heavily armoured body.
    • noun: ostracoderm, plural noun: ostracoderms

    • 更多解釋
    • IPA[ˈästrəkōˌdərm]

    美式

    • n.
      an extinct jawless fish of the Cambrian to Devonian periods, having a heavily armored body.

    Oxford American Dictionary