fluoride fluor·ide (flur'īd', flôr'-)
A compound of fluorine with another element.
The univalent anion of fluorine.
|fluoride (flr'īd') Pronunciation Key
A compound containing fluorine and another element or radical. Fluorine combines readily with nearly all the other elements, except the noble gases, to form fluorides. In some countries, fluoride is added to the drinking water as a preventive measure against tooth decay.