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Synonyms

refiner

British  
/ rɪˈfaɪnə /

noun

  1. a person, device, or substance that removes impurities, sediment, or other unwanted matter from something

"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

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.

"India is a big importer of oil. Interestingly, they're a big refiner as well," he said, adding that the supply of jet fuel had been affected by restrictions linked to the war in Ukraine.

From BBC • Apr. 8, 2026

Oil refiner Marathon Petroleum and oil exploration company APA Corp. gained 4.9% and 4.5%, respectively.

From Barron's • Mar. 24, 2026

Valero Energy, a major refiner, closed its operation at Port Arthur, Texas, after a fire in a diesel processing unit on Monday.

From Barron's • Mar. 24, 2026

Other Asian buyers, including Chinese state-owned refiner Sinopec, have moved early to lock in shipments for May.

From The Wall Street Journal • Mar. 18, 2026

Stivvins, precious metal refiner, went broke in the War, as you may have heard.

From Bones in London by Wallace, Edgar

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.