horsepower-hour: Meaning and Definition of

horse•pow•er-hour

Pronunciation: (hôrs'pou"ur-our", -ou"ur), [key]
— n.
  1. a foot-pound-second unit of energy or work, equal to the work done by a mechanism with a power output of one horsepower over a period of one hour.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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