'fluoridization' definitions:

Definition of 'fluoridization'

From: WordNet
noun
The addition of a fluoride to the water supply (to prevent dental decay) [syn: fluoridation, fluoridization, fluoridisation]

Definition of 'fluoridization'

From: GCIDE
  • fluoridization \fluoridization\ n. the addition of a fluoride to the water supply (to prevent dental decay).
  • Syn: fluoridation. [WordNet 1.5]