Tautomerism meaning

tô-tŏmə-rĭzəm
Chemical isomerism characterized by facile interconversion of isomeric forms in equilibrium, especially by migration of a hydrogen atom.
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(chem.) The property of some substances of being in a condition of equilibrium between two isomeric forms and of reacting readily to form either.
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(organic chemistry) A form of isomerism in which a dynamic equilibrium between multiple isomers exists, such as that between an enol and a ketone.
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Origin of tautomerism

  • tauto– (iso)merism

    From American Heritage Dictionary of the English Language, 5th Edition