An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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azimuthal angle
  زاویه‌ی ِ سوگانی  
zâviye-ye sugâni
Fr.: angle azimutal  

In → spherical coordinates, an angle measured from the x-axis in the xy-plane.

See also: Azimuthal, adj. from azimuth; → angle.