Young's modulus

noun

Physics.

1. 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.

Young's modulus

noun

1. 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

Young's modulus

1. See under modulus of elasticity

Word History and Origins

Origin of Young's modulus¹

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

Word History and Origins

Origin of Young's modulus¹

C19: named after Thomas _Young