sound barrier

noun

Definition of sound barrier

: a sudden large increase in aerodynamic drag that occurs as the speed of an aircraft approaches the speed of sound

Examples of sound barrier in a Sentence

Recent Examples on the Web Also, as a pellet approaches the sound barrier (1080 fps at sea level at 32 degrees), the air around it becomes very turbulent. Bill Heavey, Field & Stream, "Truth About Air Rifles: 4 Guns You Can Actually Shoot," 23 June 2014 This desert town on the western edge of the Mojave Desert is where Chuck Yeager broke the sound barrier in 1947. Scott Oldham, Car and Driver, "2020 Audi R8 Spyder Was Made to Chase Sunsets," 15 Apr. 2020 Trying to set a land speed record or breaking the sound barrier struck me as goals worth aspiring to. Preston Lerner, Wired, "DIY Rockets, Daredevils, and the Tragedy of Mad Mike Hughes," 22 Mar. 2020 The flights were faster than the speed of sound, but didn't break the sound barrier because of surrounding wind speed. Caroline Delbert, Popular Mechanics, "Here's What Caused the Fastest New York to London Subsonic Flight Ever," 10 Feb. 2020 In 1946, Dedera enlisted in the Marines at age 17 and was assigned to the Marine Corps Motion Picture Production Unit at Camp Pendleton, where one of his assignments was to document Chuck Yeager breaking the sound barrier in 1947. John D'anna, azcentral, "Don Dedera, beloved Republic columnist, author and historic preservationist, dies at age 90," 3 Mar. 2020 Breaking the sound barrier makes pellets fly like teal, not projectiles. Bill Heavey, Field & Stream, "Truth About Air Rifles: 4 Guns You Can Actually Shoot," 23 June 2014 Driven by land speed record holder Andy Green, the first person to break the sound barrier in a car, the Bloodhound LSR only used its Rolls-Royce jet engine during the test and is next aiming for 550 mph. Fox News, "Jet-powered Bloodhound LSR hits 628 mph in testing," 20 Nov. 2019 Green worked on the direct predecessor to the Bloodhound, the Thrust SSC, which broke the land-speed record and the sound barrier in 1997. Caroline Delbert, Popular Mechanics, "The Bloodhound LSR Is Halfway to Its 1,000-MPH Dream," 8 Nov. 2019

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

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First Known Use of sound barrier

1939, in the meaning defined above

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The first known use of sound barrier was in 1939

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Cite this Entry

“Sound barrier.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sound%20barrier. Accessed 11 Jul. 2020.

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