# diesel engine

> English word · Noun

## Definitions
1. An internal combustion engine of piston engine type that operates using the Diesel cycle, with diesel fuel being sprayed into the hot, high-pressure air in the combustion chamber at the end of the compression stroke.
2. An internal combustion engine of piston engine type that operates using the Diesel cycle, with diesel fuel being sprayed into the hot, high-pressure air in the combustion chamber at the end of the compression stroke.
3. a diesel locomotive.

## Etymology
Named after Rudolf Diesel. More in Wikipedia at diesel engine § History.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/diesel-engine