[1] : The Collaborative International Dictionary of English v.0.48

horse power \horse" pow`er\
   1. the power which a horse exerts.
      1913 webster

   2. mach. a unit of power, used in stating the power
      required to drive machinery, and in estimating the
      capabilities of animals or steam engines and other prime
      movers for doing work. it is the power required for the
      performance of work at the rate of 33,000 english units of
      work per minute; hence, it is the power that must be
      exerted in lifting 33,000 pounds at the rate of one foot
      per minute, or 550 pounds at the rate of one foot per
      second, or 55 pounds at the rate of ten feet per second,
      etc.
      1913 webster

   note: the power of a draught horse, of average strength,
         working eight hours per day, is about four fifths of a
         standard horse power.
         1913 webster

   brake horse power, the net effective power of a prime
      mover, as a steam engine, water wheel, etc., in horse
      powers, as shown by a friction brake. see friction
      brake, under friction.

   indicated horse power, the power exerted in the cylinder of
      an engine, stated in horse powers, estimated from the
      diameter and speed of the piston, and the mean effective
      pressure upon it as shown by an indicator. see
      indicator.

   nominal horse power steam engine, a term still sometimes
      used in england to express certain proportions of
      cylinder, but having no value as a standard of
      measurement.
      1913 webster

   3. a machine worked by a horse, for driving other machinery;
      a horse motor.
      1913 webster
see also:
brake horse power friction brake friction indicated horse power indicator nominal horse power 

Horse >> H Words
Horse, definition of term: Horse
horse_pag1.html

Horse Conch >> H Words
Horse Conch, definition of term: Horse Conch
horse+conch_pag1.html

Horse Around >> H Words
Horse Around, definition of term: Horse Around
horse+around_pag1.html

Horse Latitude >> H Words
Horse Latitude, definition of term: Horse Latitude
horse+latitude_pag1.html

Female Horse >> F Words
Female Horse, definition of term: Female Horse
female+horse_pag1.html

Fourth Power >> F Words
Fourth Power, definition of term: Fourth Power
fourth+power_pag1.html

Electric Power >> E Words
Electric Power, definition of term: Electric Power
electric+power_pag1.html

Draft Horse >> D Words
Draft Horse, definition of term: Draft Horse
draft+horse_pag1.html

Candle Power >> C Words
Candle Power, definition of term: Candle Power
candle+power_pag1.html

Black Horse >> B Words
Black Horse, definition of term: Black Horse
black+horse_pag1.html

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