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from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. The portion of an original liquid that remains after other components have been dissolved by a solvent.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. a solution from which some material has been removed by extraction with an immiscible liquid


French raffiner, to refine; see raffinose + -ate2.
(American Heritage® Dictionary of the English Language, Fourth Edition)


  • The metal can be removed from ore through a chemical separation process that leaves a soupy mixture of liquid and chemical byproducts known as "raffinate."

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