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coefficient of expansion

noun

, Physics.
  1. the fractional change in length, area, or volume per unit change in temperature of a solid, liquid, or gas at a given constant pressure.


coefficient of expansion

noun

  1. the amount of expansion (or contraction) per unit length of a material resulting from one degree change in temperature Also calledexpansivity
“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


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Word History and Origins

Origin of coefficient of expansion1

First recorded in 1870–75

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coefficient of elasticitycoefficient of friction