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periodic

 
Adjective periodic has 3 senses
  1. periodic, periodical - happening or recurring at regular intervals
    Antonyms: aperiodic, nonperiodic, noncyclic, nonoscillatory
  2. periodic - recurring at regular intervals
    Antonyms:
    unrhythmical, unrhythmic (indirect, via rhythmical)
  3. periodic - recurring or reappearing from time to time; "periodic feelings of anxiety"
    Antonym:
    continual (indirect, via sporadic)
period of calm period of play period of sickness period of time period piece period return periodc periode periodic periodic acid periodic apnea of the newborn periodic breathing periodic event periodic law periodic motion periodic movement periodic sentence

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