[ raf-uh-neyt ]
/ ˈræf əˌneɪt /

noun Chemistry.

the part of a liquid, especially an oil, remaining after its more soluble components have been extracted by a solvent.

Origin of raffinate

1925–30; < French raffin(er) to refine (r(e)- re- + affiner to refine; see affine) + -ate1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for raffinate


/ (ˈræfɪˌneɪt) /


the liquid left after a solute has been extracted by solvent extraction

Word Origin for raffinate

C20: from French raffiner to refine + -ate 1
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

Science definitions for raffinate


[ răfə-nāt′ ]

The portion of an original liquid that remains after other components have been dissolved by a solvent. The term is often used to refer to the oil that is not dissolved in petroleum refining operations.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.