Search Result for "fluoridisation": 
Wordnet 3.0

NOUN (1)

1. the addition of a fluoride to the water supply (to prevent dental decay);
[syn: fluoridation, fluoridization, fluoridisation]



WordNet (r) 3.0 (2006):

fluoridisation
    n 1: the addition of a fluoride to the water supply (to prevent
         dental decay) [syn: fluoridation, fluoridization,
         fluoridisation]