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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-fīnə-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."

Keep Reading on Vocabulary.com

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:

It notes the hydroxide refinery isn’t yet proven.

From The Wall Street Journal Jul. 23, 2026

The private equity investment gives investors a slice of the 650,000 barrels-per-day refinery launched two years ago and is currently the largest on the continent.

From Barron's Jul. 23, 2026

Then the U.S. shale boom brought in the opposite kind — light sweet crude that expensive refinery equipment doesn’t optimally use.

From MarketWatch Jul. 21, 2026

In theory this could be explained by a drawdown in domestic stockpiles amid continuing disruptions in the Strait of Hormuz, but refinery output also is declining.

From The Wall Street Journal Jul. 16, 2026

The water had a sharp, foul smell that let me know there was a tannery upstream, or a refinery.

From "The Name of the Wind" by Patrick Rothfuss

"We have no problem with stocks to supply our refineries," he said.

From Barron's Jul. 23, 2026

The largest U.S. refineries were built long ago to best run heavy and sour crude: the thick, higher-sulfur oil from Canada, Venezuela, Mexico and the Persian Gulf.

From MarketWatch Jul. 21, 2026

Meanwhile, Ukrainian efforts to cripple Russia’s war effort have disrupted crude oil shipments in the Black Sea and fuel production at Russian refineries.

From The Wall Street Journal Jul. 21, 2026

Typically the tankers receiving the oil will then head toward private refineries in China, known as teapot refineries, who buy the oil at a discount.

From The Wall Street Journal Jul. 18, 2026

Royal Dutch Shell had borrowed him from his American company because he was an expert in refineries and gasoline production.

From "The Cay" by Theodore Taylor

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