noun per·y·lene \ˈperəˌlēn\

Definition of perylene



  1. :  a yellow crystalline aromatic hydrocarbon C20H12 that is constituted of two naphthalene residues joined to each other through the peri-positions, that is found in small amounts in coal tar, and that can be made from naphthalene by the action of aluminum chloride

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.

Join MWU now and get access to America’s largest dictionary, with:

  • 300,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Origin and Etymology of perylene


Seen and Heard

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


to cast off or become cast off

Get Word of the Day daily email!