1. the process of adding chlorine to water, especially drinking water or swimming pools, to kill harmful bacteria and microorganisms
Usage: mass noun; commonly used in public health and water treatment contexts
2. a chemical process in which chlorine is introduced into an organic compound
Usage: chemistry; technical

Examples

• Chlorination of the city's water supply has significantly reduced waterborne diseases.
• The swimming pool requires regular chlorination to maintain safe water quality.
• Modern water treatment plants use chlorination as a standard disinfection method.
• Chlorination of organic compounds is an important reaction in synthetic chemistry.
• The effectiveness of chlorination depends on proper pH levels and contact time.
• Many communities have switched to alternative disinfection methods alongside chlorination.