An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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radar
  رادار  
râdâr (#)
Fr.: radar  

An emitting/receiving device in which the echo of a pulse of microwave radiation is used to detect and locate distant objects.

See also: From ra(dio) d(etecting) a(nd) r(anging).