Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun british_thermal_unit
1 sense of british thermal unit
Sense 1
British thermal unit, BTU, B.Th.U. -- (a unit of heat equal to the amount of heat required to raise one pound of water one degree Fahrenheit at one atmosphere pressure; equivalent to 251.997 calories)
=> work unit, heat unit, energy unit -- (a unit of measurement for work)