acenaphthenyl

noun
ace·​naph·​the·​nyl | \ -thəˌnil \
plural -s

Definition of acenaphthenyl

: a univalent radical C12H9 formed by removal of one hydrogen atom from acenaphthene

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!

First Known Use of acenaphthenyl

circa 1929, in the meaning defined above

History and Etymology for acenaphthenyl

acenaphthene + -yl

Learn More About acenaphthenyl

Time Traveler for acenaphthenyl

Time Traveler

The first known use of acenaphthenyl was circa 1929

See more words from the same year

Dictionary Entries Near acenaphthenyl

acenaphthene

acenaphthenyl

acenaphthylene

See More Nearby Entries 

Statistics for acenaphthenyl

Cite this Entry

“Acenaphthenyl.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/acenaphthenyl. Accessed 2 Dec. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

WORD OF THE DAY

Test Your Vocabulary

Name that Thing: Flower Edition

Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Love words? Need even more definitions?

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