An Etymological Dictionary of Astronomy and Astrophysics

English-French-Persian

فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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tropical month
  ماه ِ هموگانی  
mâh-e hamugâni
Fr.: mois tropique  

The average period of the revolution of the Moon about the Earth with respect to the → vernal equinox, a period of 27.321 582 days (27d 7h 43m 4.7s).

Etymology (EN): → tropical; → month.

Etymology (PE): Mâh, → month; hamugâni, of or pertaining to hamugân, → equinox.