British thermal unit

noun Physics.

the amount of heat required to raise the temperature of 1 pound (0.4 kilogram) of water 1°F. Abbreviation: Btu, BTU, B.t.u., B.T.U., B.th.u.

Origin of British thermal unit

First recorded in 1875–80

Words nearby British thermal unit

British Standards Institution, British Standard Time, British Standard Whitworth thread, British Summer Time, British Technology Group, British thermal unit, British Union of Fascists, British Virgin Islands, British warm, British West Africa, British West Indies

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for British thermal unit

British thermal unit

noun

a unit of heat in the fps system equal to the quantity of heat required to raise the temperature of 1 pound of water by 1°F. 1 British thermal unit is equivalent to 1055.06 joules or 251.997 caloriesAbbrevs: btu, BThU

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Cultural definitions for British thermal unit

British thermal unit

A unit for measuring heat. One Btu raises the temperature of one pound of water one degree Fahrenheit (see also Fahrenheit).

Medical definitions for British thermal unit

British thermal unit

n.

The quantity of heat required to raise the temperature of one pound of water from 60° to 61°F at a constant pressure of one atmosphere.

The quantity of heat equal to 1180 of the heat required to raise the temperature of one pound of water from 32° to 212°F at a constant pressure of one atmosphere.

Scientific definitions for British thermal unit

British thermal unit

[ brĭt′ĭsh ]

A unit used mainly to measure heat but also applied to other forms of energy. One British thermal unit is equal to the amount of heat needed to raise the temperature of one pound of water by one degree Fahrenheit, or 251.997 calories.

单词	british thermal unit
释义	British thermal unit noun Physics. the amount of heat required to raise the temperature of 1 pound (0.4 kilogram) of water 1°F. Abbreviation: Btu, BTU, B.t.u., B.T.U., B.th.u. Origin of British thermal unit First recorded in 1875–80 Words nearby British thermal unit British Standards Institution, British Standard Time, British Standard Whitworth thread, British Summer Time, British Technology Group, British thermal unit, British Union of Fascists, British Virgin Islands, British warm, British West Africa, British West Indies Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for British thermal unit British thermal unit noun a unit of heat in the fps system equal to the quantity of heat required to raise the temperature of 1 pound of water by 1°F. 1 British thermal unit is equivalent to 1055.06 joules or 251.997 caloriesAbbrevs: btu, BThU Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 Cultural definitions for British thermal unit British thermal unit A unit for measuring heat. One Btu raises the temperature of one pound of water one degree Fahrenheit (see also Fahrenheit). The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. Medical definitions for British thermal unit British thermal unit n. The quantity of heat required to raise the temperature of one pound of water from 60° to 61°F at a constant pressure of one atmosphere. The quantity of heat equal to 1180 of the heat required to raise the temperature of one pound of water from 32° to 212°F at a constant pressure of one atmosphere. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for British thermal unit British thermal unit [ brĭt′ĭsh ] A unit used mainly to measure heat but also applied to other forms of energy. One British thermal unit is equal to the amount of heat needed to raise the temperature of one pound of water by one degree Fahrenheit, or 251.997 calories. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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