hypersonic


hy·per·son·ic

adjective \-ˈsä-nik\

Definition of HYPERSONIC

1
:  of or relating to speed five or more times that of sound in air — compare sonic
2
:  moving, capable of moving, or utilizing air currents that move at hypersonic speed <hypersonic wind tunnel>
hy·per·son·i·cal·ly \-ni-k(ə-)lē\ adverb

Origin of HYPERSONIC

International Scientific Vocabulary
First Known Use: 1946

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