1. A class of synthetic organic compounds containing a six-membered carbon ring with two double bonds, used primarily as insecticides.
Usage: chemistry; technical; often used in plural form

Examples

• Cyclodiene insecticides were widely used in agriculture during the mid-20th century.
• The EPA banned many cyclodiene pesticides due to environmental persistence and bioaccumulation.
• Aldrin and dieldrin are well-known examples of cyclodiene compounds.
• Cyclodiene residues have been detected in soil and water samples decades after application.
• The chemical structure of cyclodienes makes them resistant to degradation in the environment.