diesel

or Die·sel

[dee-zuh l, -suh l]

adjective

noting a machine or vehicle powered by a diesel engine: diesel locomotive.
of or relating to a diesel engine: diesel fuel.

noun

a vehicle powered by a diesel engine.

Origin of diesel

after R. Diesel, the engine's inventor

Diesel

[dee-zuh l, -suh l]

noun

Ru·dolf [roo-dolf, -dawlf; German roo-dawlf] /ˈru dɒlf, -dɔlf; German ˈru dɔlf/, 1858–1913, German automotive engineer.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for diesel

diesel

noun

a ship, locomotive, lorry, etc, driven by a diesel engine
informal short for diesel oil
Southern African slang any cola drinkspook and diesel
sucking diesel See suck (def. 10)

Diesel

noun

Rudolf (ˈruːdɔlf). 1858–1913, German engineer, who invented the diesel engine (1892)
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

Word Origin and History for diesel
adj.

1894, named for Rudolf Diesel (1858-1913), German mechanical engineer who designed this type of engine.

Online Etymology Dictionary, © 2010 Douglas Harper