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Adjective: hypersonic  ,hI-pu(r)'só-nik
  1. Moving at more than five times the speed of sound
     
  2. Of sound waves with frequency greater than 1000 million hertz

Encyclopedia: Hypersonic

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hyperpyrexia
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hypersensitive
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hypersensitivity reaction
hypersensitized
hypersexuality
hypersomnia
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hyperspace
hypersplenism
Hyperstat
hypersthene
hypersurface
Hypertensin
hypertension
hypertensive
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