Daily Almanac for
Nov 30, 2009
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horse•pow•er-hour



Pronunciation: (hôrs'pou"ur-ouur", -ou"ur), [key]
n.
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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