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  1. Oxford American Dictionary

    periodicity

    • IPA[ˌperēəˈdisədē]

    美式

    • n.
      the quality or character of being periodic; the tendency to recur at intervals

    • noun: periodicity

    • 釋義

    名詞

    • 1. technical the quality or character of being periodic; the tendency to recur at intervals the periodicity of the sunspot cycle
    • 更多解釋

    periodicity

    • IPA[ˌpɪərɪəˈdɪsɪti]

    英式

    • n.
      the quality or character of being periodic; the tendency to recur at intervals: the periodicity of the sunspot cycle

    Oxford Dictionary