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overrefine

[oh-ver-ri-fahyn]
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verb (used with object), o·ver·re·fined, o·ver·re·fin·ing.
  1. to refine excessively, as with oversubtle distinctions.
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Origin of overrefine

First recorded in 1705–15; over- + refine
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for overrefine

overrefine

verb
  1. to refine (something) to excess
  2. (intr) to make excessively fine distinctions
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Derived Formsoverrefinement, noun
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