BRITISH THERMAL UNIT

Pronunciation (US):

(GB):

IPA (US):

 Dictionary entry overview: What does British thermal unit mean? 

• BRITISH THERMAL UNIT (noun)
  The noun BRITISH THERMAL UNIT has 1 sense:

1. 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

  Familiarity information: BRITISH THERMAL UNIT used as a noun is very rare.

 Dictionary entry details 

• BRITISH THERMAL UNIT (noun)

Sense 1

Meaning:

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

Classified under:

Nouns denoting quantities and units of measure

Synonyms:

B.Th.U.; British thermal unit; BTU

Hypernyms ("British thermal unit" is a kind of...):

energy unit; heat unit; work unit (a unit of measurement for work)

Holonyms ("British thermal unit" is a part of...):

therm (a unit of heat equal to 100,000 British thermal units)

 Context examples 

The thermochemical British thermal unit is equal to approximately 1.05435026444 kJ.

(British Thermal Unit Thermochemical, NCI Thesaurus)

Mean British thermal unit is equal to 1.05587 kJ.

(British Thermal Unit Mean, NCI Thesaurus)

The British thermal unit at 60 degrees Fahrenheit is equal to approximately 1.05468 kJ.

(British Thermal Unit 60 Degrees Fahrenheit, NCI Thesaurus)

The British thermal unit at 59 degrees Fahrenheit is based on the definition of the 15 degrees Celsius calorie (exactly 4.1855 joules) and is equal to approximately 1.054804 kJ.

(British Thermal Unit 59 Degrees Fahrenheit, NCI Thesaurus)

The British thermal unit at 39 degrees Fahrenheit is based on the definition of the calorie value of water at its maximum density (4 degrees Celsius), and is equal to approximately 1.05967 kJ.

(British Thermal Unit 39 Degrees Fahrenheit, NCI Thesaurus)

International Table British thermal unit is based on the definition of the International Table calorie (exactly 4.1868 J) at the Fifth International Conference on the Properties of Steam (London, July 1956), and is equal to 1.05505585262 kJ.

(British Thermal Unit International Table, NCI Thesaurus)