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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Russia has used hypersonic missiles in combat against Ukraine. Daniel Larlham, ArsTechnica, 2 May 2025 Even higher temperatures are possible during hypersonic reentry. Eileen Falkenberg-Hull, MSNBC Newsweek, 1 May 2025 Russia does have other systems with comparable range and resistance to Ukrainian jamming, such as the Kinzhal hypersonic missile. Vikram Mittal, Forbes.com, 29 Apr. 2025 Related Stories: Expanding their space industry expertise further, Rocket Lab was also recently chosen as a potential partner for the military's multibillion-dollar programs dedicated to building hypersonic technology. Josh Dinner, Space.com, 23 Apr. 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 18 May. 2025.

Last Updated: - Updated example sentences
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