英[ˌpɪərɪə'dɪsɪtɪ]美[ˌpɪrɪə'dɪsətɪ]
noun(名词)
双解例句
noun(名词)
小知识
The characteristic of happening regularly is periodicity. In a given school day, you're sure to notice the periodicity of the bells ringing after class at predictable, regular intervals.
The adjective periodicity is almost always used in a scientific or technical context (in more casual conversation, you'd be more likely to say regularity or even rhythm). In nature, there are many examples of periodicity, from the daily sunrise and sunset to the phases of the moon and the recurrence of the seasons. Periodicity is closely related to periodic, from the Greek root periodos, “cycle.”