Hypersonic - What does it mean?

hypersonic | |



(en adjective)
  • (of a speed, aviation) equal to, or greater than, or capable of achieving, five times the speed of sound.
  • (of a speed, aeronautics) far enough above the speed of sound as to cause significant differences in behaviour due to chemical reactions or disassociation of the air.
  • Not English

    has no English definition. It may be misspelled.