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

ethinyl

noun ethi·nyl \e-ˈthī-nəl, ˈe-thə-ˌnil\

Definition of ethinyl

  1. :  a monovalent unsaturated radical HC≡C− derived from acetylene by removal of one hydrogen atom



Variants of ethinyl

also ethy·nyl \e-ˈthī-nəl, ˈe-thə-ˌnil\

Origin of ethinyl

ethine ethyne + -yl


First Known Use: 1929


Medical Dictionary

ethinyl

noun ethi·nyl

Medical Definition of ethinyl

  1. :  a monovalent unsaturated radical HC≡C− derived from acetylene by removal of one hydrogen atom



Variants of ethinyl

also ethy·nyl \e-ˈthīn-əl, ˈeth-ə-ˌnil\

Learn More about ethinyl

  1. Medical Dictionary: Definition of "ethinyl"


Seen and Heard

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

WORD OF THE DAY

February 8, 2016

to clear from accusation or blame

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?

pince-nez spindrift duvet 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