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- Dictionaryhorsepower/ˈhɔːsˌpaʊə/
noun
- 1. an imperial unit of power equal to 550 foot-pounds per second (about 750 watts).
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Horsepower ( hp) is a unit of measurement of power, or the rate at which work is done, usually in reference to the output of engines or motors. There are many different standards and types of horsepower.
horsepower, the common unit of power; i.e., the rate at which work is done. In the British Imperial System, one horsepower equals 33,000 foot-pounds of work per minute—that is, the power necessary to lift a total mass of 33,000 pounds one foot in one minute.
noun. : the power that a horse exerts in pulling. : a unit of power equal in the U.S. to 746 watts and nearly equivalent to the English gravitational unit of the same name that equals 550 foot-pounds of work per second.
noun [ C/U ] us / ˈhɔrsˌpɑʊ·ər / plural horsepower. Add to word list. a unit for measuring the power of an engine: [ C ] a 170-horsepower engine.
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.
May 22, 2018 · noun [ C/U ] us / ˈhɔrsˌpɑʊ·ər / plural horsepower. Add to word list. a unit for measuring the power of an engine: [ C ] a 170-horsepower engine.
The term horsepower describes how much power an engine can produce, and is directly related to how much speed a car can achieve.
A unit 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. The American Heritage® Student Science Dictionary, Second Edition.
noun [ C or U ] MEASURES (also horsepower) uk us plural horse power ( abbreviation hp) Add to word list. a unit used for measuring the power of an engine: Horse power rates the engine performance of cars and even lawn mowers. With a 520 horsepower, V12 engine, this is the fastest car the company has ever made.
Definition of horsepower noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
