from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • adjective of a speed, aviation equal to, or greater than, or capable of achieving, ten times the speed of sound.
  • adjective of a speed, aeronautics far enough above the speed of sound so 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


from Wiktionary, Creative Commons Attribution/Share-Alike License

Blend of plasma and sonic


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  • But as new higher-speed concepts in what he calls the "plasmasonic" Mach 10 realm begin to appear, the phenomenon is attracting more attention.

    Scientific American

  • Ideas include designing the configuration of the craft so as to minimize the resulting plasmasonic sheath; building an

    Scientific American


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