An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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angular dispersion
  پاشش ِ زاویه‌ای  
pâšeš-e zâvie-yi
Fr.: dispersion angulaire  

The rate of change of the angles of emergence θ of various wavelengths from a dispersing prism: dθ/dλ.

See also: → angular; → dispersion.