Meaning of cyclodiene

cy•clo•di•ene

Pronunciation: (sī"klu-dī'ēn, -dī-ēn'), [key]
— n. Chem.
  1. any of several organic chemicals having a chlorinated methylene group bonded to two carbon atoms of a 6-membered carbon ring, used commercially in insecticides.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.