SINCE 1828
ethynyl
noun
ethy·nyl
less common spelling of ethinyl
: a monovalent unsaturated radical HC≡C− derived from acetylene by removal of one hydrogen atom
Keep scrolling for more
Comments on ethynyl
What made you want to look up ethynyl? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Words for Summer: A Quiz
-
- Which of the following words means “of or relating to summer”?
Test your knowledge - and maybe learn something along the way.
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridged
Words at Play
Ask the Editors
Word Games
-
Words for Summer: A Quiz
Test your knowledge of words related to the season of longer days and vacations.
Take the quiz -
Finance Words Quiz
Take the quiz
-
True or False?
Test your knowledge - and maybe learn something along the way.
Take the quiz -
Syn City
Build a city of skyscrapers—one synonym at a time.
Play the game
Share ethynyl
Resources for ethynyl