Btu
British thermal unit; British thermal units.
the amount of heat required to raise the temperature of 1 pound (0.4 kg) of water 1°F.
Abbreviation: Btu, BTU, B.t.u., B.T.U., B.th.u.
Contemporary Examples
The Last Blowout The Daily Beast October 30, 2010
Historical Examples
Unaddressed Letters Anonymous
abbreviation
British thermal unit US abbreviation BTU
abbreviation
Board of Trade Unit
noun
a unit of heat in the fps system equal to the quantity of heat required to raise the temperature of 1 pound of water by 1°F. 1 British thermal unit is equivalent to 1055.06 joules or 251.997 calories Abbrevs btu, BThU
Btu
Abbreviation of British thermal unit
British thermal unit
(brĭt’ĭsh)
A unit used mainly to measure heat but also applied to other forms of energy. One British thermal unit is equal to the amount of heat needed to raise the temperature of one pound of water by one degree Fahrenheit, or 251.997 calories.
British thermal unit (Btu)
British thermal unit
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