al·​kyl·​ene | \ ˈalkəˌlēn \
plural -s

Definition of alkylene

1 : a bivalent saturated aliphatic radical (such as ethylene) regarded as derived from an alkene by opening of the double bond or from an alkane by removal of two hydrogen atoms from different carbon atoms
2 : alkene

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 alkylene

1886, in the meaning defined at sense 1

History and Etymology for alkylene

International Scientific Vocabulary alkyl + -ene

Learn More About alkylene

Time Traveler for alkylene

Time Traveler

The first known use of alkylene was in 1886

See more words from the same year

Dictionary Entries Near alkylene

alkylbenzene sulfonate


alkyl halide

See More Nearby Entries 

Statistics for alkylene

Cite this Entry

“Alkylene.” Dictionary, Merriam-Webster, Accessed 1 Jul. 2022.

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


Test Your Vocabulary

Great Words for Scrabble

  • scrabble tiles that read scrabble quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

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