sodium fluoride

noun

: a poisonous 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

Example Sentences

Recent Examples on the Web Sunlit Chemical, which turns 50 this year, also produces sodium fluoride for the dental industry and chemicals for other uses, including in the solar and steel-manufacturing industries. Russ Wiles, The Arizona Republic, 20 Jan. 2022

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sodium fluoride.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

1869, in the meaning defined above

Time Traveler
The first known use of sodium fluoride was in 1869

Dictionary Entries Near sodium fluoride

Cite this Entry

“Sodium fluoride.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sodium%20fluoride. Accessed 10 Dec. 2022.

Kids Definition

sodium fluoride

noun
: a salt that is added in tiny amounts to drinking water and toothpastes to prevent tooth decay

Medical Definition

sodium fluoride

noun
: a poisonous crystalline salt NaF that is used in trace amounts in the fluoridation of drinking water, toothpastes, and oral rinses and in metallurgy, as a flux, as an antiseptic, and as a pesticide see luride

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