youngs modulus

Young's modulus

noun Physics.
a coefficient of elasticity of a substance, expressing the ratio between a stress that acts to change the length of a body and the fractional change in length caused by this force.

Origin:
1860–65; named after Thomas Young, who derived it

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World English Dictionary
Young's modulus
 
n
E a modulus of elasticity, applicable to the stretching of a wire etc, equal to the ratio of the applied load per unit area of cross section to the increase in length per unit length
 
[C19: named after Thomas Young]

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Science Dictionary
Young's modulus   (yŭngz)  Pronunciation Key 
See under modulus of elasticity.
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