tautomer

[ taw-tuh-mer ]
/ ˈtɔ tə mər /

noun Chemistry.

a compound that exhibits tautomerism.

Origin of tautomer

First recorded in 1900–05; back formation from tautomerism

British Dictionary definitions for tautomer

tautomer
/ (ˈtɔːtəmə) /

noun

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