hp
Definition
- Noun:
- A unit of power equal to 746 watts: "hp" is an abbreviation for "horsepower," a standard unit of measurement for the rate at which work is done, commonly used to describe the power output of engines and motors.
Usage
- "hp" is used as a singular noun, typically preceded by a number or quantifier. It is a technical term most common in engineering, automotive, and mechanical contexts to quantify mechanical or electrical power.
Examples
- Noun:
- The new tractor has an engine rated at 150 hp.
- This motor generates 2 hp, which is sufficient for the pump.
Advanced Usage
- "brake horsepower (bhp)": A specific measure of an engine's power output taken at the engine's crankshaft, not including losses from the gearbox, generator, or other auxiliary components.
- The car's specifications list its maximum output as 300 bhp.
- "shaft horsepower (shp)": A measure of the power delivered to a propeller or output shaft of a turbine engine.
- The aircraft's engines produce over 5,000 shp each.
Variants and Related Words
- Horsepower (n): The full, unabbreviated form of "hp."
- Horsepower is a key metric for comparing vehicle performance.
- Watt (n): The SI unit of power; 1 horsepower is approximately 746 watts.
- To convert hp to watts, multiply by 746.
Synonyms
- Power unit: A general term for any unit measuring power (e.g., watt, kilowatt).
- Mechanical power: Describes the type of power often measured in horsepower.
Related Phrases
- "hp rating": The specified horsepower of a machine or engine.
- Always check the hp rating before buying a generator for your needs.
- "under the hood": An idiom often used in automotive contexts; discussions of what is "under the hood" frequently mention horsepower.
- What matters is not just the looks, but the horsepower under the hood.
Noun
-
a unit of power equal to 746 watts
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