hypersonic

adjective

hy·​per·​son·​ic ˌhī-pər-ˈsä-nik How to pronounce hypersonic (audio)
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
hypersonically adverb

Examples of hypersonic in a Sentence

Recent Examples on the Web
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The Defense Department money supported research in fields including hypersonic technology, semiconductors, artificial intelligence, advanced materials and next-generation propulsion. Didi Tang, Arkansas Online, 6 Sep. 2025 The Defense Department money supported research in fields including hypersonic technology, semiconductors, artificial intelligence, advanced materials and next-generation propulsion. Didi Tang, Chicago Tribune, 5 Sep. 2025 This generates exponentially more kinetic energy on impact, allowing the interceptor to defeat ballistic missiles, cruise missiles, hypersonic weapons, and aircraft. Kapil Kajal, Interesting Engineering, 4 Sep. 2025 During the parade, the Chinese military showed off its most advanced hardware, including stealth jets, tanks, anti-ship missiles, hypersonic missiles and drones. Siladitya Ray, Forbes.com, 3 Sep. 2025 See All Example Sentences for hypersonic

Word History

Etymology

International Scientific Vocabulary

First Known Use

1946, in the meaning defined at sense 1

Time Traveler
The first known use of hypersonic was in 1946

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Cite this Entry

“Hypersonic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hypersonic. Accessed 10 Sep. 2025.

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