-i·​dene | \ əˌdēn \
plural -s

Definition of -idene

: radical having two valence bonds at the point of attachment ethylidene CH3CH< ethidene — compare -ylidene

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

History and Etymology for -idene

International Scientific Vocabulary - ide + -ene

Keep scrolling for more

Learn More about -idene

Statistics for -idene

Cite this Entry

“-idene.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/-idene. Accessed 17 January 2020.

Comments on -idene

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


a plan in which a last survivor takes all

Get Word of the Day daily email!

Test Your Vocabulary

The Eponym Quiz

  • rubens painting
  • Which is the best synonym of bowdlerize?
Spell It

Can you spell these 10 commonly misspelled words?

Dictionary Devil

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

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!