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bulk modulus

noun

, Physics.
  1. a coefficient of elasticity of a substance, expressing the ratio between a pressure that acts to change the volume of the substance and the fractional change in volume produced.


bulk modulus

noun

  1. a coefficient of elasticity of a substance equal to minus the ratio of the applied stress ( p ) to the resulting fractional change in volume (d V/V ) in a specified reference state (d V/V is the bulk strain ) K
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

bulk modulus

/ bŭlk /

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Word History and Origins

Origin of bulk modulus1

First recorded in 1905–10
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Example Sentences

The modulus is obtained by dividing the stress by the strain; if this is done with the above example, the ratio will give the bulk modulus.

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