adjective hy·per·son·ic \ˌhī-pər-ˈsä-nik\

Definition of hypersonic

  1. 1 :  of or relating to speed five or more times that of sound in air — compare sonic

  2. 2 :  moving, capable of moving, or utilizing air currents that move at hypersonic speed hypersonic wind tunnel


play \ˌhī-pər-ˈsä-ni-k(ə-)lē\ adverb

Origin and Etymology of hypersonic

International Scientific Vocabulary

First Known Use: 1946

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