the sound barrier

noun

Definition of the sound barrier

: the large increase in air resistance that occurs as an aircraft nears the speed of sound and that was once an obstacle to traveling faster than the speed of sound a plane that is able to break the sound barrier

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Cite this Entry

“The sound barrier.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/the%20sound%20barrier. Accessed 16 Jan. 2021.

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