- petroleum as it comes from the ground, before refining.
Origin of crude oil
First recorded in 1860–65
Also called crude, crude petroleum.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for crude oil
The automatic had a silencer on it, and its clicking had been drowned out, anyhow, by the roaring of the crude-oil engine.
- petroleum before it has been refined
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
- Unrefined petroleum.
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