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horsepower
- 5 dictionary resultshorse⋅pow⋅er
[hawrs-pou-er] 
ər
–noun
| 1. | a foot-pound-second unit of power, equivalent to 550 foot-pounds per second, or 745.7 watts. |
| 2. | Informal. the capacity to achieve or produce; strength or talent: The university's history faculty is noted for its intellectual horsepower. |
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Based on the Random House Dictionary, © Random House, Inc. 2009.
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Link To horsepower
| horse·pow·er (hôrs'pou'ər) n. pl. horse·power
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The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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horsepower
A unit of power equal to about 746 watts.
Note: The horsepower is used to measure the power of engines.
Note: This term was coined by James Watt, who invented a new type of steam engine in the eighteenth century. Watt found that the horse could do a certain amount of work per second; when he sold his steam engines, this measurement allowed him to estimate the worth of an engine in terms of the number of horses it would replace. Therefore, a six-horsepower engine was capable of replacing six horses.
The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Language Translation for : horsepower
Spanish:
caballo de vapor,
German:
die Pferdestärke (P.S.),
Japanese:
馬力
horsepower
1806, from horse + power, established by Watt as the power needed to lift 33,000 pounds one foot in one minute, which is actually about 1.5 times the power of a strong horse.
Online Etymology Dictionary, © 2001 Douglas Harper
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| horsepower (hôrs'pou'ər) Pronunciation Key
A unit that is used to measure the power of engines and motors. One unit of horsepower is equal to the power needed to lift 550 pounds one foot in one second. This unit has been widely replaced by the watt in scientific usage; one horsepower is equal to 745.7 watts. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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