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1. Oxford Dictionary

   phototaxis

   • IPA[ˌfəʊtə(ʊ)ˈtaksɪs]

   英式

   • n.
     the bodily movement of a motile organism in response to light, either towards the source of light (positive phototaxis) or away from it (negative phototaxis).

   • noun: phototaxis, plural noun: phototaxes

2. • 更多解釋

   phototaxis

   • IPA[ˌfōdōˈtaksəs]

   美式

   • n.
     the bodily movement of a motile organism in response to light, either toward the source of ...

   Oxford American Dictionary