Dictionary.com
Thesaurus.com
Synonyms

crude oil

American  

noun

  1. petroleum as it comes from the ground, before refining.

crude oil British  

noun

  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 Scientific  
/ kro̅o̅d /

  1. Unrefined petroleum.

Etymology

Origin of crude oil

First recorded in 1860–65

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

"For natural rubber gloves, input costs have risen by approximately 30 percent, as natural rubber is a traded commodity which is impacted by the uptrend in crude oil prices," the company added.

From Barron's • Apr. 24, 2026

California gets crude oil from the Middle East but also from Canada, Argentina and Guyana.

From Los Angeles Times • Apr. 24, 2026

On a year-over-year basis, the increase was led by gold, silver and platinum-group metal ores, followed by conventional and synthetic crude oil, and cattle and calves.

From The Wall Street Journal • Apr. 23, 2026

"This is the final storage facility used before oil is exported and Iran can divert crude oil to other facilities rather than straight to Kharg," he said.

From Barron's • Apr. 23, 2026

Her tone couldn’t have held more wonder and censure if Zooey’s pores had been exuding crude oil.

From "Franny and Zooey" by J. D. Salinger

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.