plural -s
: any of several thermoplastic crystalline materials that are polymers of para-xylene and are used especially as electrical insulation coating

Word History


contraction of para-xylene

First Known Use

1965, in the meaning defined above

Time Traveler
The first known use of parylene was in 1965

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 parylene

Cite this Entry

“Parylene.” Dictionary, Merriam-Webster, Accessed 2 Mar. 2024.

Love words? Need even more definitions?

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