名詞 fluoridation:

1. the addition of a fluoride to the water supply (to prevent dental decay)
   同義詞：fluoridization, fluoridisation

fluor.i.da.tion

n.（名詞）
The addition of a fluorine compound to a drinking water supply for the purpose of reducing tooth decay.
加氟化物：為減少牙齒受侵蝕而在飲用水中所加的氟化物