In science, thermal energy is a misnomer or rather misused contrivance, convolution, or confabulation of the precisely defined terms heat and energy, or rather heat and internal energy, and or sometimes mistaken to be a synonym or aggregation of terms such as heat content, specific heat, heat capacity, or latent heat, all of which have precise mathematical formulation.

The term “thermal energy”, in the context of modern physical science, loosely speaking, is a nonsensical term and seems to be a laymanized carryover of either the 18th century term “caloric content”, alluding to the idea that a body contains a certain number of caloric particles.

Further reading
● Lewis, Gilbert N. and Adams, Elliot Q. (1914). “On the Distribution of Thermal Energy”, Physical Review, 331-44.

External links
Thermal energy – Wikipedia.

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