Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Medical
  • Scrabble
  • Spanish Central
  • Learner's Dictionary

tautomer

play
noun tau·to·mer \ˈtȯ-tə-mər\

Definition of tautomer

  1. :  any of the forms of a tautomeric compound



Origin of tautomer

International Scientific Vocabulary, from tautomeric


First Known Use: 1903


Medical Dictionary

tautomer

play
noun tau·to·mer \ˈtȯt-ə-mər\

Medical Definition of tautomer

  1. :  any of the forms of a tautomeric compound




Learn More about tautomer

  1. Medical Dictionary: Definition of "tautomer"


Seen and Heard

What made you want to look up tautomer? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

February 10, 2016

to put in good humor

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

image1037863653

Which of the following refers to thin, bending ice, or to the act of running over such ice?

duvet spindrift pince-nez kittly-benders
Name That Thing

10 quick questions: hear them, spell them, and see how your skills compare to the crowd.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ