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  1. Oxford American Dictionary

    geotaxis

    • IPA[ˌjēōˈtaksəs]

    美式

    • n.
      the motion of a motile organism or cell in response to the force of gravity.

    • noun: geotaxis

    • 更多解釋

    geotaxis

    • IPA[ˌdʒiːə(ʊ)ˈtaksɪs]

    英式

    • n.
      the motion of a motile organism or cell in response to the force of gravity.

    Oxford Dictionary