expansivity
noun/ˌɪkspænˈsɪvəti/, /ˌekspænˈsɪvəti/
/ˌɪkspænˈsɪvəti/, /ˌekspænˈsɪvəti/
[uncountable, countable] (physics)- the amount by which a material gets larger or smaller if the temperature changes by one degreeTopics Physics and chemistryc2
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expansivity