kinetic theory of heat

American

noun

Physics.

a theory that the temperature of a body is determined by the average kinetic energy of its particles and that an inflow of heat increases this energy.

Etymology

Origin of kinetic theory of heat

First recorded in 1860–65

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kinetic theory of heat

The modern kinetic theory of heat was a subsequent discovery, as elsewhere explained.

From Inventions in the Century by Doolittle, William Henry

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023