horsepower

Meanings

1. 1
   noun

   a unit of power equal to 746 watts

   If it could be controlled it would furnish millions of horsepower for a long time.

From horse + power: the unit was originally defined as the amount of power that a horse could provide. Both non-metric and metric units of power were derived from effectively identical measurements of the power a draught horse could sustain over several hours, with the difference in watts solely due to different rounding errors to express that power in round numbers in the original non-SI units (ft·lbf/min and kgf⋅m/s respectively).

Topics

External links

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• Cambridge Dictionary
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