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plasma +‎ sonic


plasmasonic (not comparable)

  1. (of a speed, aviation) equal to, or greater than, or capable of achieving, ten times the speed of sound.
  2. (of a speed, aeronautics) far enough above the speed of sound as to cause ionization of the air through shock heating deriving from the sonic shockwave, with resultant radio blackout, and plasma sheath surrounding the object travelling at speed

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