heat of fusion

heat of fusion

noun Physics.
the heat absorbed by a unit mass of a given solid at its melting point that completely converts the solid to a liquid at the same temperature: equal to the heat of solidification.
Compare latent heat.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Heat of fusion is always a great word to know.
So is inertia. Does it mean:
a very large colliding-beam machine in which superconducting magnets create millions of megavolts of energy
the property of matter by which it retains its state of rest or its velocity along a straight line so long as it is not acted upon by an external force
American Heritage
Science Dictionary
heat of fusion  
The amount of heat required to convert a solid at its melting point into a liquid without an increase in temperature. Liquids release the same amount of heat when they solidify. See also heat of vaporization.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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