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thermal unit
noun
- a unit of heat energy or of the equivalent of heat energy in work.
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Word History and Origins
Origin of thermal unit1
First recorded in 1875–80
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Example Sentences
The British thermal unit is the amount of heat required to raise the temperature of one pound of water one Fahrenheit degree.
From Project Gutenberg
A British thermal unit is the amount of heat required to warm one pound of water one degree Fahrenheit.
From Project Gutenberg
The number of foot pounds of mechanical energy equivalent to one British thermal unit.
From Project Gutenberg
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