1. Plural of chlordane; a group of persistent organic pesticides formerly used to control insects in agriculture and on crops, now largely banned due to environmental and health concerns.
Usage: technical; chemistry/environmental science; often used in regulatory or scientific contexts

Examples

• Chlordanes were widely applied to cotton fields before their ban in the 1980s.
• Residues of chlordanes can still be detected in soil samples from treated agricultural areas.
• The EPA restricted the use of chlordanes due to their persistence in the environment.
• Scientists study chlordanes as examples of legacy pollutants that remain in ecosystems.
• Chlordanes accumulate in fatty tissues of animals, posing bioaccumulation risks.