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British thermal unit

 

Definition: the quantity of heat required to raise 1 lb of water from 3.9°C to 4.4°C; equal to 251.996 calorie or 1055.056 J.

Synonym(s): unit of heat2

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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