British thermal unit
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About Our Definitions: All forms of a word (noun, verb, etc.) are now displayed on one page.British thermal unit
nounDefinition of BRITISH THERMAL UNIT
: the quantity of heat required to raise the temperature of one pound of water one degree Fahrenheit at a specified temperature (as 39°F)
See First Known Use of BRITISH THERMAL UNIT
1876
British thermal unit
noun (Medical Dictionary)Medical Definition of BRITISH THERMAL UNIT
: the quantity of heat required to raise the temperature of one pound of water one degree Fahrenheit at a specified temperature (as 39°F)—abbreviation Btu
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