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instantaneous sound pressure

 - 2 dictionary results

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.
2. effective sound pressure.

Origin:
1890–95
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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