ˌflu̇rəˈdāshən, ˌflōr-, ˌflȯr- noun
( -s )
Etymology: fluoride + -ation
: the addition of fluorine usually as a fluoride to something: as
a. : the introduction of fluorine into rocks as indicated by the formation of such minerals as fluorite and topaz
b. : the adding of a fluoride to drinking water
fluoridation of public water supplies for prevention of tooth decay in children