English Dictionary

lunation

IPA（発音記号）

/luːˈneɪʃən/

名詞

A month of an average of approximately 29.53 days, measured from a lunar phase until the return of that same phase. / The irregular period from one new moon until the next.

日本語の意味

約29.53日の月の満ち欠けを一周期とする、月の位相が回復する周期。 / 新月から次の新月までの不規則な周期。

A lunation, averaging about 29.53 days from one lunar phase to its return, governs the timing of many traditional lunar calendars.

朔望月は、月のある位相から同じ位相に戻るまで平均約29.53日で、多くの伝統的な太陰暦の時期を決めます。

意味（1）

A month of an average of approximately 29.53 days, measured from a lunar phase until the return of that same phase.

And there is not the moon seen in all the lunation, save only the second quarter.

意味（2）

The irregular period from one new moon until the next.

lunations （ plural ）