tautomer

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tau·tom·er·ism

 (tô-tŏm′ə-rĭz′əm)
n.
Chemical isomerism characterized by facile interconversion of isomeric forms in equilibrium, especially by migration of a hydrogen atom.


tau′to·mer (tô′tə-mər) n.
tau′to·mer′ic (tô′tə-mĕr′ĭk) adj.

tautomer

(ˈtɔːtəmə)
n
(Elements & Compounds) either of the two forms of a chemical compound that exhibits tautomerism
Translations
tautomère