definitions

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.

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Nearby words

heat lamp, heat lightning, heat of combustion, heat of condensation, heat of formation, heat of fusion, heat of reaction, heat of solidification, heat of solution, heat of sublimation, heat of vaporization
Compare latent heat.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Science definitions for heat of fusion

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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.