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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Boasting an improved rocket motor for extended range, the new interceptor is built to engage hypersonic glide vehicles and advanced aerial threats. — New Atlas, 13 Oct. 2026 The launch was Pyongyang’s fourth in a month, following Seoul’s recent test of a hypersonic missile. — Reuters, NBC news, 13 Oct. 2026 Jang, the South Korean military official, said the latest North Korean launches likely were intended to advance the country’s missile technologies while also serving as a possible response to South Korea’s hypersonic test. — ABC News, 11 Oct. 2026 Despite the successful trial, significant technical and operational challenges remain before South Korea’s hypersonic glide vehicle can be deployed as a dependable strategic asset. — Prabhat Ranjan Mishra, Interesting Engineering, 9 Oct. 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 15 Oct. 2026.

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