Meaning & Definition of word "Horsepower"

Horsepower

/ˈhɔːrspɑːr/

noun:

  • 1. A unit of measurement for power, commonly used to measure the power output of engines and motors, equivalent to about 746 watts.
    • Example: The car's engine produces 300 horsepower, allowing it to accelerate quickly.
  • 2. A measure of the power that a horse can exert, historically used to gauge the power of steam engines and later automobile engines.
    • Example: In the early days of automobiles, horsepower was a key factor in determining a vehicle's performance.
  • 3. Informally, it can refer to the capability or strength of a machine or system.
    • Example: The new tractor boasts an impressive 150 horsepower, making it perfect for heavy farm work.

Etymology

The term horsepower was coined in the late 18th century by inventor James Watt.

Common Phrases and Expressions

brute horsepower:

A phrase that refers to the raw power and capabilities of an engine or vehicle.

measuring horsepower:

The process of determining the power output of an engine.

horsepower to weight ratio:

A measure that compares the power of a vehicle to its weight, often used to assess performance.

Related Words

torque:

A measure of rotational force, often related to vehicle performance.

engine:

A machine designed to convert one form of energy into mechanical energy.

powertrain:

The components of a vehicle that generate power and deliver it to the road.

Slang Meanings of horsepower

Meaning: HP

Example Sentence: My new bike has 200 HP.

Meaning: Pony power

Example Sentence: This hot rod has some serious pony power under the hood.