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coefficient of expansion

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Definition of coefficient of expansion

: the ratio of the increase of length, area, or volume of a body per degree rise in temperature to its length, area, or volume, respectively, at some specified temperature, commonly 0° C, the pressure being kept constant

— called also expansivity

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“Coefficient of expansion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/coefficient%20of%20expansion. Accessed 22 Jun. 2021.

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