the horsepower of a reciprocating engine as shown by an indicator record. Abbreviation: ihp, IHP
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- indicator diagram,
- indicator species
Origin of indicated horsepower
First recorded in 1870–75
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
the power output of a piston engine calculated from the mean effective pressure in the cylinder as derived from an indicator diagram and the speed of the engine in revolutions per minute
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012