Dictionary.com
definitions

diesel engine

SEE MORE SYNONYMS FOR diesel engine ON THESAURUS.COM

noun

a compression-ignition engine in which a spray of fuel, introduced into air compressed to a temperature of approximately 1000° F (538° C), ignites at a virtually constant pressure.

RELATED CONTENT

The Deep Web Vs. The Dark WebDeep web and dark web are so technical in nature that we came across a lot of confusion as to what they actually mean in our research. More tech-savvy publications generally have a disclaimer when discussing the dark web, pleading with their readers that this is not to be confused with the deep web, which is related, but not at all the same thing. So, what exactly are the dark web and the deep web, and why are technology reporters so wary when using either term?
READ MORE
Irreparable vs. UnrepairableThe words irreparable and unrepairable are synonyms that mean unable to be fixed. Both irreparable and unrepairable are adjectives (words that modify nouns by describing an aspect of them). Irreparable was first used between the late 1300s to early 1400s. It’s a Middle English word derived from the Latin term, irreparabilis, meaning not able to be recovered. Unrepairable is a related form of the verb …
READ MORE

RELATED WORDS

diesel

Nearby words

  1. dies committee,
  2. dies irae,
  3. dies non,
  4. diesel,
  5. diesel cycle,
  6. diesel fuel,
  7. diesel oil,
  8. diesel-electric,
  9. diesel-hydraulic,
  10. dieseling

Origin of diesel engine

First recorded in 1890–95
Also called diesel.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for diesel engine

diesel engine

diesel motor

noun

a type of internal-combustion engine in which atomized fuel oil is sprayed into the cylinder and ignited by compression alone
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
Science definitions for diesel engine

diesel engine

[ dē′zəl ]

An internal-combustion engine in which the fuel oil is ignited by the heat of air that has been highly compressed in the cylinder, rather than by a spark. Due to the need for the engine to withstand very high pressures, diesel engines are relatively heavy; however, they are relatively fuel-efficient, especially when running at low power.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.