sodium fluoride
A crystalline salt NaF that is used in trace amounts in the fluoridation of drinking…A crystalline salt NaF that is used in trace amounts in the fluoridation of drinking water and toothpastes, in metallurgy, as a flux, and as a pesticide.
US/ˌsoʊ.di.əm ˈflʊɹˌaɪd/
Meaning
1 senses(uncountable)A crystalline salt NaF that is used in trace amounts in the fluoridation of drinking water and toothpastes, in metallurgy, as a flux, and as a pesticide.
a colorless crystalline salt of sodium (NaF) used in fluoridation of water and to prevent tooth decay
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable