Diesel

/ˈdiːzəl/

Meaning & Definition

noun
A type of fuel derived from crude oil, used in diesel engines.
The truck runs on diesel fuel, making it more efficient for long hauls.
A diesel engine, particularly in vehicles and machinery.
The construction site uses heavy equipment powered by a diesel engine.
A specific grade of fuel for diesel engines that has a higher energy density than gasoline.
He filled up the car with diesel at the nearest station.
adjective
Relating to or using diesel fuel or diesel engines.
The diesel generator provided power during the outage.
Referring to a type of vehicle or machine that operates on diesel fuel.
They purchased a new diesel pickup truck for better fuel efficiency.

Etymology

Named after Rudolf Diesel, the German engineer who developed the engine.

Common Phrases and Expressions

diesel engine
An internal combustion engine that burns diesel fuel.
diesel emissions
The pollutants released from diesel engines.
diesel mechanic
A technician specializing in diesel-powered vehicles.

Related Words

biodiesel
A renewable substitute for diesel fuel made from biological materials.
petroleum
A liquid mixture of hydrocarbons present in fossil fuels.
combustion
The process of burning something to produce energy.

Slang Meanings

Something that is very powerful or efficient.
This truck is a diesel; it can haul huge loads without breaking a sweat.
Referring to a person or thing that is robust and reliable.
He's a diesel in the office, always getting things done efficiently.