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

Examples of hypersonic in a Sentence

Recent Examples on the Web
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The agency wants an interceptor capable of addressing ballistic, hypersonic, and cruise missile threats. Aamir Khollam, Interesting Engineering, 18 Aug. 2026 Changes in the geopolitical situation and advances in military fields like hypersonic weapon systems are driving a push for deployable launch infrastructure. David Szondy august 15, New Atlas, 15 Aug. 2026 Hypersonic launch capabilities enhance the new Virginia class further, analysts said, noting that testing of a hypersonic glide vehicle is well underway. Brad Lendon, CNN Money, 8 Aug. 2026 But a growing number these days are performed by HASTE, a suborbital variant of Electron that allows customers to test technologies in a hypersonic flight environment. Mike Wall, Space.com, 6 Aug. 2026 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 25 Aug. 2026.

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