An Etymological Dictionary of Astronomy and Astrophysics

The time interval between two successive passages of the Moon through its ascending node (27.212220 days, i.e., 27 days 5 hours 5 minutes 35.8 seconds). Nodical month is important for predicting eclipses. Also called → draconic month.

Etymology (EN): Nodical adj. of → node; → month.

Etymology (PE): Mâh, → month; gerehi, adj. of gereh,
→ node; gowzahri→ draconic month.