tautomer

[ taw-tuh-mer ]
/ ˈtɔ tə mər /

noun Chemistry.

a compound that exhibits tautomerism.

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Origin of tautomer

First recorded in 1900–05; back formation from tautomerism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for tautomer

tautomer
/ (ˈtɔːtəmə) /

noun

either of the two forms of a chemical compound that exhibits tautomerism
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