An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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supersonic
  اَبَر-صدایی  
abar-sedâyi
Fr.: supersonique  

Describing a speed that is greater than the → sound speed in the medium concerned. See also → Mach number, → subsonic.

See also: → super-; → sonic.