Subscriber login


Forgot your password?

Library card login

Other

tautomer

Syllabification: (tau·to·mer)
Pronunciation: /ˈtôtəmər/
Definition of tautomer

noun

Chemistry
  • each of two or more isomers of a compound that exist together in equilibrium, and are readily interchanged by migration of an atom or group within the molecule.

Derivatives

tautomeric

Pronunciation: /ˌtôtəˈmerik/
adjective

tautomerism

noun

Origin:

early 20th century: blend of tauto- 'same' and isomer

tautomer in other Oxford dictionaries

Definition of tautomer in the British & World English dictionary
  |  Cite
Oxford Dictionaries Pro

For Oxford's best resources for writers, plus thesaurus, audio, and 1.9m examples.

Shop for an Oxford dictionary

Find the perfect Oxford dictionary for you in our online shop.
SHOP NOW ►

Word of the day

cur

/ kəː /
noun
an aggressive or unkempt dog …