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acoustic impedance

noun, Acoustics.
the total reaction of a medium to the transmission of sound through it, expressed as the ratio of sound pressure to particle velocity at a given point in the medium. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for acoustic impedance
  • acoustic impedance is defined by the bulk density of the medium times the velocity of the sound within that medium.

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