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

1720–30; refine + -ery Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
refinery (rɪˈfaɪnərɪ)
n , pl -eries
a factory for the purification of some crude material, such as ore, sugar, oil, etc

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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American Heritage
Science Dictionary
refinery   (rĭ-fī'nə-rē)  Pronunciation Key 
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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Back to the drafting table: under revamped plans, a refurbished sign will glow
  again from atop the remodeled refinery.
If you half-nationalize a sugar refinery, don't be surprised if foreign direct
  investment dries up.
Instead of this key refinery or that port falling, it's this square or that
Meanwhile, on the ground, other scientists have found new ways to track
  refinery pollution.
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