nodical month


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nodical month

(nod -ă-kăl) See draconic month.

nodical month

[′näd·ə·kəl ′mənth]
(astronomy)
The average period of revolution of the moon about the earth with respect to the moon's ascending node, a period of 27 days 5 hours 5 minutes 35.8 seconds, or approximately 27¼ days. Also known as draconic month; draconitic month.