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sound pressure

noun, Physics.
1.
Also called excess sound pressure, instantaneous sound pressure. the difference between the pressure at a point in a medium through which a sound wave is passing and the static pressure of the medium at that point.
Origin of sound pressure
1890-1895
First recorded in 1890-95
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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