B.T.U.

 I. (noun) 

Sense 1

Meaning:

A unit of energy equal to the work done by a power of 1000 watts operating for one hour

Synonyms:

B.T.U.; Board of Trade unit; kilowatt hour; kW-hr

Classified under:

Nouns denoting quantities and units of measure

Hypernyms ("B.T.U." is a kind of...):

energy unit; heat unit; work unit (a unit of measurement for work)

Meronyms (parts of "B.T.U."):

watt-hour (a unit of energy equal to the power of one watt operating for one hour)

Credits