What is the meaning of sound barrier?

noun

  • The increase in aerodynamic drag as an airplane approaches the speed of sound.
WordNet 3.0 © 2006 by Princeton University
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APAWordNet. (2010). sound barrier. Retrieved September 21, 2026, from http://smartdefine.org/sound_barrier/definitions/1311928
ChicagoWordNet. 2010. "sound barrier" http://smartdefine.org/sound_barrier/definitions/1311928 (accessed September 21, 2026).
HarvardWordNet 2010, sound barrier, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/sound_barrier/definitions/1311928>.
MLAWordNet. "sound barrier" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/sound_barrier/definitions/1311928>