Young's modulus: Meaning and Definition of

Young's' mod'ulus

Pronunciation: [key]
— Physics. 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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.