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  1. Oxford American Dictionary

    optical activity

    • IPA[ˈäptəkəl akˈtivədē]
    • n.
      the property (displayed by solutions of some compounds, notably many sugars) of rotating the plane of polarization of plane-polarized light.

    • noun: optical activity

    • 更多解釋

    optical activity

    • n.
      the property (displayed by solutions of some compounds, notably many sugars) of rotating the ...

    Oxford Dictionary