dicyclopentadiene

noun

di·​cyclopentadiene
(¦)dī+
: a liquid tricyclic hydrocarbon C10H12 formed from cyclopentadiene on standing and yielding cyclopentadiene on boiling

Word History

Etymology

di- + cycl- + pentadiene

First Known Use

1904, in the meaning defined above

Time Traveler
The first known use of dicyclopentadiene was in 1904

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!

Dictionary Entries Near dicyclopentadiene

Dicyclica

dicyclopentadiene

Dicyemata

See More Nearby Entries 

Cite this Entry

“Dicyclopentadiene.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dicyclopentadiene. Accessed 24 Mar. 2023.

Copy Citation

Share

Love words? Need even more definitions?

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

Word of the Day

Listen to the pronunciation of zany

See Definitions and Examples »

Test Your Vocabulary

A Good Old-Fashioned Quiz

  • butter churn
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Solve today's spelling word game by finding as many words as you can with using just 7 letters. Longer words score more points.

Can you make 12 words with 7 letters?

PLAY
Words at Play
Ask the Editors
Word Games