Young\'s 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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Young's modulus is always a great word to know.
So is positron. Does it mean:
a particle having the same mass and spin as an electron but having a positive charge equal in magnitude to that of the electron's negative charge
any two masses attract each other with a force equal to a constant, multiplied by the product of the two masses, divided by the square of the distance between them
Collins
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]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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American Heritage
Science Dictionary
Young's modulus   (yŭngz)  Pronunciation Key 
See under modulus of elasticity.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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