English noun: B.Th.U. | |||
1. | B.Th.U. (quantity) 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 | ||
Synonyms | British thermal unit, BTU | ||
Broader (hypernym) | energy unit, heat unit, work unit | ||
Part meronym | therm | ||