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metamer

[met-uh-mer]
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noun Chemistry.
  1. a compound exhibiting metamerism with one or more other compounds.
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Origin of metamer

First recorded in 1880–85; meta- + -mer
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for metamers

metamer

noun
  1. any of two or more isomeric compounds exhibiting metamerism
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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

metamers in Medicine

metamer

(mĕtə-mər)
n.
  1. A compound that contains the same number and type of atoms as other compounds but with a different distribution of radicals.
  2. A color that appears to the eye to be identical to another color but which in fact has a different spectral composition.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.