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  1. tropism

    • IPA[ˈtrōˌpiz(ə)m]

    美式

    • n.
      the turning of all or part of an organism in a particular direction in response to an external stimulus.
    • noun: tropism

    • 更多解釋
    • IPA[ˈtrəʊpɪz(ə)m]

    英式

    • n.
      the turning of all or part of an organism in a particular direction in response to an external ...

    Oxford Dictionary