An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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radio wavelength
  موج-طول ِ رادیویی  
mowjtul-e râdioyi
Fr.: longueur d'onde radio  

The → electromagnetic radiation with a wavelength ranging from 1 mm to several 100 km. See so → radio wave.

See also: → radio; → wavelength.