1. to add fluoride to (a public water supply) to help prevent tooth decay
Usage: transitive verb; commonly used in public health contexts

Examples

• Many cities fluoridate their drinking water to improve dental health.
• The decision to fluoridate the municipal water supply was approved by the city council.
• Dentists recommend that communities fluoridate water as a cost-effective way to reduce cavities.
• Some residents opposed plans to fluoridate the local water system.
• The water treatment plant began to fluoridate the supply in 1985.