sound barrier

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sound barrier

n.
2. A set of tall barriers placed along a road or highway to muffle the sound of traffic.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

sound barrier

n
(Aeronautics) (not in technical usage) a hypothetical barrier to flight at or above the speed of sound, when a sudden large increase in drag occurs. Also called: sonic barrier or transonic barrier
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

sound′ bar`rier


n.
an abrupt increase in drag experienced by an aircraft approaching the speed of sound.
[1950–55]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

sound barrier

The sudden, sharp increase in drag experienced by aircraft approaching the speed of sound. Also called sonic barrier.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sound barrier - the increase in aerodynamic drag as an airplane approaches the speed of sound
drag, retarding force - the phenomenon of resistance to motion through a fluid
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations

sound barrier

n the sound barrierla barriera or il muro del suono
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
References in periodicals archive ?
A sound barrier also called a noise barrier, sound berm, or acoustical barrier is an exterior structure designed to absorb and reduce generated impulsive noise and vibration energy, protecting inhabitants of sensitive land use areas from noise pollution.
The firm says it maintains an inventory comprising a full line of noise control materials, including acoustical absorber and acoustical barrier materials, mass loaded vinyl, noise control blankets and panels, acoustical foam, vibration isolation mounts, soundproof door and window gaskets, and quiet windows.