• synonyms

crude oil

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  1. 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

Historical Examples

  • The automatic had a silencer on it, and its clicking had been drowned out, anyhow, by the roaring of the crude-oil engine.

    Astounding Stories of Super-Science January 1931


British Dictionary definitions for crude oil

crude oil

  1. 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

crude oil in Science

crude oil

  1. Unrefined petroleum.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.