Meaning of diene

di•ene

Pronunciation: (dī'ēn, dī-ēn'), [key]
— n. Chem.
  1. any compound, as 1,3-butadiene, CH=CH−CH=CH, that contains two double bonds. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.