fluoridate

verb

1. (transitive)To add fluoride to something, especially to drinking water in order to reduce tooth decay.

   “Out of the 484 Utah water systems that reported data in 2024, only 66 fluoridated their water, an Associated Press analysis showed. The largest was the state’s biggest city, Salt Lake City.”

   “In England, about one in 10 people has fluoridated drinking water, though a programme has since been introduced to fluoridate water for 1.6 million people in north-east England.”