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  1. spongin

    • IPA[ˈspʌn(d)ʒɪn]

    英式

    • n.
      the horny or fibrous substance found in the skeleton of many sponges.
    • noun: spongin, plural noun: spongins

    • 更多解釋
    • IPA[ˈspənjin]

    美式

    • n.
      the horny or fibrous substance found in the skeleton of many sponges.

    Oxford American Dictionary