fluoridate

v [Tn] add traces of fluoride to (the water supply), esp to prevent tooth decay 在（食水）中加氟（尤指为预防生龋齿）.

flue, fluency, fluent, fluently, fluff, fluffiness, fluffy, fluid, fluid ounce (abbr 缩写 fl oz), fluidity, fluke, fluky (also flukey), flummox, flung, flunk, flunkey (also flunky), fluoresce, fluorescence, fluorescent, fluorescent lamp, fluoridation, fluoride, fluoridization, fluoridisation, fluoridize, fluridise, fluorine, flurry, flush, flushed, fluster, flute, flutist, flutter, fluvial, flux, fly, fly into a temper, fly-away, fly-blown, fly-by, fly-by-night,