fluoride

[floor-ahyd, flawr-, flohr-]

noun

Chemistry.

1. a salt of hydrofluoric acid consisting of two elements, one of which is fluorine, as sodium fluoride, NaF.

2. a compound containing fluorine, as methyl fluoride, CH 3 F.

fluoride

/ ˈflʊəˌraɪd /

noun

1. any salt of hydrofluoric acid, containing the fluoride ion, F ^–

2. any compound containing fluorine, such as methyl fluoride

fluoride

1. 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.

fluoride

1. Any of a number of naturally occurring compounds of the element fluorine. Fluorides have been found to be effective in preventing tooth decay and are routinely added to drinking water in most jurisdictions.

Word History and Origins

Origin of fluoride¹

First recorded in 1820–30; fluor- + -ide ( def. )

Example Sentences

The short document described more than 120 topics that the administration plans to tackle with little more than a brief paragraph each for subjects as varied as water quality, ultraprocessed foods and fluoride.

From Los Angeles Times

For example, in the case of EO, highly corrosive hydrogen fluoride vapor.

From BBC

He has also backed local officials who want to stop adding fluoride to drinking water, describing it as a "dangerous neurotoxin".

From BBC

“What’s surprising to me is that she wanted the job, because she had difficulties adopting RFK’s full portfolio,” Lustig said, citing Kennedy’s controversial pronouncements on vaccines and fluoride in public water supplies.

From Los Angeles Times

"But the joke was about fluoride. I have big, gap teeth, not bad teeth."

From Salon