Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun An internal-combustion engine that uses the heat of highly compressed air to ignite a spray of fuel introduced after the start of the compression stroke.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun an internal combustion engine which operates using diesel fuel

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun an internal-combustion engine that burns heavy oil

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[After Rudolf Diesel.]

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