Definition of B.t.u. in English :
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B.t.u. meaning in English
Meaning of B.t.u. in English
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B.t.u.
see synonyms of b.t.u.Noun
1. b.t.u., board of trade unit, kilowatt hour, kw-hr
a unit of energy equal to the work done by a power of 1000 watts operating for one hour
WordNet Lexical Database for English. Princeton University. 2010.