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modulus of rigidity

American  

noun

Physics.

  1. shear modulus.

modulus of rigidity British  

noun

  1.  G.  a modulus of elasticity equal to the ratio of the tangential force per unit area to the resulting angular deformation

"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

Etymology

Origin of modulus of rigidity

First recorded in 1875–80

Example Sentences

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It follows that the density of the aether must exceed 10-18, and its elastic modulus must exceed 103, which is only about 10-8 of the modulus of rigidity of glass.

From The Project Gutenberg Encyclopedia Volume 1 of 28 by Project Gutenberg

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