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periodic

adj pe·ri·od·ic \ˌpir-ē-ˈäd-ik\

Medical Definition of PERIODIC

: occurring or recurring at regular intervals <periodic epidemics>

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Dictionary: Definition of "periodic"

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Spanish Central: Spanish translation of "periodic"

Nglish: Translation of "periodic" for Spanish speakers

Britannica English: Translation of "periodic" for Arabic speakers

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