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Synonyms

refinery

American  
[ri-fahy-nuh-ree] / rɪˈfaɪ nə ri /

noun

  • refineries
    plural
  1. an establishment for refining something, as metal, sugar, or petroleum.


refinery British  
/ rɪˈfaɪnərɪ /

noun

  1. a factory for the purification of some crude material, such as ore, sugar, oil, etc

"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

refinery Scientific  
/ rĭ-fī′nə-rē /
  1. An industrial plant that uses mechanical and chemical means to purify a substance, such as petroleum or sugar, or to convert it to a form that is more useful.


Other Word Forms

Noun Inflected Forms


Etymology

Origin of refinery

First recorded in 1720–30; refine + -ery


Explanation

A refinery is a facility where raw materials are converted into some valuable substance by having impurities removed. At an oil refinery, crude oil is treated and made into gasoline and other petroleum products. Whenever a material needs to have unwanted parts removed in order to be made into a useable product, it must be refined — clarified or processed. This is done at a plant called a refinery. A sugar refinery, for example, converts sugar cane or beets into familiar white, refined crystals of sugar. Refinery comes from refine, which is rooted in the now-obsolete verb fine, "make fine."

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Vocabulary lists containing refinery

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.

See Examples For:

“In the meantime, restored crude-oil flows remain precarious and refinery crack spreads are likely to stay high.”

From MarketWatch ● Oct. 21, 2026

Russia on Thursday reported that an oil refinery in Ryazan, south of the capital, Moscow, had been hit in a "large-scale attack".

From Barron's ● Oct. 15, 2026

However, easing Russian diesel export restrictions is unlikely to materially improve supply while refinery capacity remains impaired, and fresh disruptions could tighten the market further.

From The Wall Street Journal ● Oct. 14, 2026

For context, the proposed 4.8 million metric tons is roughly 36 million barrels, or 400,000 barrels a day over three months — and delivery depends on refinery availability, said Babin.

From MarketWatch ● Oct. 9, 2026

The U.S. customs office was kept busy inspecting oil tankers from the Middle East which supplied crude oil to the refinery at Hess Oil.

From "Hole in My Life" by Jack Gantos

Instead of sending oil directly to Chinese refineries, tankers linked to Iran ferried the crude to waters off the coast of Malaysia and Singapore.

From The Wall Street Journal ● Oct. 22, 2026

Most of the oil produced from Rosebank would be sent to the Netherlands because the UK's remaining refineries are not equipped to process the heavier type of crude oil extracted from the North Sea.

From BBC ● Oct. 21, 2026

Inventory draws are projected to accelerate in October as seasonal demand rises and refineries undergo routine maintenance.

From The Wall Street Journal ● Oct. 16, 2026

While power plants and oil refineries have been hit, data centers and internet facilities are becoming the latest quarry for drone and missile strikes — and not just in Europe.

From Salon ● Oct. 15, 2026

These led to observation decks and to adjoining refineries studded with less impressive stacks.

From "Middlesex: A Novel" by Jeffrey Eugenides

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