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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."

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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:

The Schwedt refinery has since taken increased deliveries via the Baltic sea ports of Rostock in Germany and Gdansk in Poland, and is now operating at 80 percent of capacity.

From Barron's Sep. 4, 2026

Dangote is planning to build a 700,000-barrel-per-day east African oil refinery in Lamu, on the Kenyan coast.

From Barron's Sep. 4, 2026

Groundbreaking for that refinery will take place on September 30, an official confirmed.

From Barron's Sep. 4, 2026

U.S. refinery capacity use rose to 98% last week.

From The Wall Street Journal Sep. 2, 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

It also loosened fuel-quality standards to allow more supplies from second-tier, Soviet-built refineries and banned diesel exports.

From The Wall Street Journal Sep. 7, 2026

“Our refineries could buy Venezuelan oil and then offer the U.S. government higher-quality oil,” said Clayton Seigle, a managing director at advisory firm Beacon Global Strategies.

From The Wall Street Journal Sep. 3, 2026

But that doesn’t mean they are interested in building new refineries.

From The Wall Street Journal Sep. 2, 2026

Another long-range drone made by Culver Aerospace, called Sichen, meaning January, has been one of Ukraine’s most successful, hitting oil refineries outside of St. Petersburg and Moscow among other targets.

From The Wall Street Journal Sep. 1, 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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