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Definition of lunar cycle noun from the Oxford Advanced Learner's Dictionary

lunar cycle

noun

/ˌluːnə ˈsaɪkl/

/ˌluːnər ˈsaɪkl/

(astronomy)

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a period of 19 years, after which the new moon and full moon return to the same day of the yearTopics Timec2

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See lunar cycle in the Oxford Advanced American Dictionary

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