flu ‧ o ‧ ri ‧ date /ˈflʊərədeɪt, ˈflʊərɪdeɪt $ ˈflʊr-,ˈflɔːr-/ BrE AmE verb [transitive]
to add fluoride to the water supply
—fluoridation /ˌflʊərəˈdeɪʃ ə n, ˌflʊərɪˈdeɪʃ ə n $ ˌflʊr-, ˌflɔːr-/ noun [uncountable]
flu ‧ o ‧ ri ‧ date /ˈflʊərədeɪt, ˈflʊərɪdeɪt $ ˈflʊr-,ˈflɔːr-/ BrE AmE verb [transitive]
to add fluoride to the water supply
—fluoridation /ˌflʊərəˈdeɪʃ ə n, ˌflʊərɪˈdeɪʃ ə n $ ˌflʊr-, ˌflɔːr-/ noun [uncountable]
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012