Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

Comprehensive
Dictionary Suite
Help
Help
Help
 
Advanced Dictionary    
Display options
 
Lookup History
Btu

Btu

 
pronunciation:
bi ti yu
part of speech: abbreviation
definition: abbreviation of "British thermal unit" or "British thermal units," a unit of heat equal to the amount needed to raise the temperature of one pound of water one degree Fahrenheit, or equal to about 252 calories.