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2017 Word of the Year

thermal radiation

noun, Thermodynamics.
1.
electromagnetic radiation emitted by all matter above a temperature of absolute zero because of the thermal motion of atomic particles.
Origin of thermal radiation
1930-1935
First recorded in 1930-35
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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12
13
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