Phrases starting with the letter: A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Previous word: British Somaliland
Next word: British Togoland
Definition of: British thermal unit
Physics
The quantity of heat required to raise the temperature of one pound of water one degree Fahrenheit: at a starting temperature of 60° F. it is equal to 1054.6 joules. Abbr. B.T.U.
Comment about this word, ask questions, or add new information about this topic: