hypersonic

adjective
hy·​per·​son·​ic | \ ˌhī-pər-ˈsä-nik How to pronounce hypersonic (audio) \

Definition of hypersonic

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

Other Words from hypersonic

hypersonically \ ˌhī-​pər-​ˈsä-​ni-​k(ə-​)lē How to pronounce hypersonic (audio) \ adverb

Examples of hypersonic in a Sentence

Recent Examples on the Web Tass reported this week that Moscow completed testing its hypersonic cruise missile and intends to put it into use. Karoun Demirjian, Washington Post, 19 July 2022 The superior maneuverability of the hypersonic glide vehicle was more strikingly verified through the final test-fire. Kyle Mizokami, Popular Mechanics, 13 Jan. 2022 The test weapon -- which sources say was a less maneuverable version of a hypersonic glide vehicle designed to evade missile defenses -- splashed down harmlessly in the sea between China and Japan, thousands of miles away from threatening America. Katie Bo Lillis, Barbara Starr And Oren Liebermann, CNN, 13 Jan. 2022 China's test involved a hypersonic glide vehicle, according to reports. USA Today, 4 Nov. 2021 As The Washington Post reported last week, a test conducted in August involved a nuclear-capable hypersonic vehicle that partially orbited the globe before hurtling to Earth. Arkansas Online, 28 Oct. 2021 China has also tested a wave-riding hypersonic vehicle called Starry Sky-2. Sebastien Roblin, Forbes, 28 Sep. 2021 Engineers on the project eventually want to use the carrier to launch a reusable hypersonic flight research vehicle called the Talon-A craft, which is 28 feet long. Kaelan Deese, Washington Examiner, 30 Apr. 2021 North Korea has conducted a flurry of missile launches this year, from hypersonic weapons to tests of its largest intercontinental ballistic missiles (ICBMs) for the first time in nearly five years. Fox News, 6 June 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hypersonic.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of hypersonic

1946, in the meaning defined at sense 1

History and Etymology for hypersonic

International Scientific Vocabulary

Learn More About hypersonic

Time Traveler for hypersonic

Time Traveler

The first known use of hypersonic was in 1946

See more words from the same year

Dictionary Entries Near hypersonic

hypersomnolence

hypersonic

hypersorption

See More Nearby Entries 

Statistics for hypersonic

Last Updated

31 Jul 2022

Cite this Entry

“Hypersonic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hypersonic. Accessed 11 Aug. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

Test Your Vocabulary

Challenging Words You Should Know

  • hedgehog reading a book
  • Often used to describe “the march of time,” what does inexorable mean?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!