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

bulk modulus

/ bŭlk /

1. See under modulus of elasticity

Word History and Origins

Origin of bulk modulus¹

First recorded in 1905–10