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Definition of periodic adjective from the Oxford Advanced Learner's Dictionary

periodic

adjective
 
/ˌpɪəriˈɒdɪk/
 
/ˌpɪriˈɑːdɪk/
(also less frequent periodical
 
/ˌpɪəriˈɒdɪkl/
 
/ˌpɪriˈɑːdɪkl/
)
[usually before noun]
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  1. happening fairly often and regularly
    • Periodic checks are carried out on the equipment.
    • He makes periodic visits to all the shops which stock his products.
    Oxford Collocations DictionaryPeriodic is used with these nouns:
    • check
    • examination
    • fluctuation
    • …
    See full entry
    Word Originmid 17th cent.: from French périodique, or via Latin from Greek periodikos ‘coming round at intervals’, from periodos ‘orbit, recurrence, course’, from peri- ‘around’ + hodos ‘way, course’.
See periodic in the Oxford Advanced American DictionarySee periodic in the Oxford Learner's Dictionary of Academic English
Check pronunciation: periodic

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trait
noun
 
 
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