fluoride

noun, often attributive
fluo·​ride | \ ˈflȯr-ˌīd How to pronounce fluoride (audio) , ˈflu̇r- How to pronounce fluoride (audio) \

Definition of fluoride

1 : a compound of fluorine
2 : the monovalent anion of fluorine

Examples of fluoride in a Sentence

Recent Examples on the Web Lizzo uses Theodent 300, a $125 toothpaste that replaces the usual fluoride with a proprietary enamel-strengthening ingredient called Rennou. Marci Robin, Allure, 15 Nov. 2021 In 2019, city employees made a mistake that greatly increased the fluoride in the drinking water. Matt Canham, The Salt Lake Tribune, 18 Oct. 2021 Oregon Supreme Court case from 1956 upholding the city of Bend’s authority to add fluoride to its water supply for the greater public good. oregonlive, 7 Oct. 2021 Brushing with fluoride toothpaste can help with the external care of your teeth. Celeste Polanco, Essence, 1 Sep. 2021 Does your husband have similar theories about fluoride, humans landing on the moon, Pizzagate? Amy Dickinson, chicagotribune.com, 25 Aug. 2021 But before the internet, if someone were to drone on about fluoride in the drinking water, for instance, their comments weren't likely to become national news. BostonGlobe.com, 15 Aug. 2021 Does your husband have similar theories about fluoride, humans landing on the moon, Pizzagate? Amy Dickinson, oregonlive, 25 Aug. 2021 Does your husband have similar theories about fluoride, humans landing on the moon, Pizzagate? Amy Dickinson, chicagotribune.com, 25 Aug. 2021

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

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First Known Use of fluoride

1826, in the meaning defined at sense 1

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Time Traveler for fluoride

Time Traveler

The first known use of fluoride was in 1826

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Dictionary Entries Near fluoride

fluoridated

fluoride

fluorinate

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Statistics for fluoride

Last Updated

27 Nov 2021

Cite this Entry

“Fluoride.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fluoride. Accessed 5 Dec. 2021.

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More Definitions for fluoride

fluoride

noun

English Language Learners Definition of fluoride

: a chemical that is sometimes added to drinking water and toothpaste to help keep teeth healthy

fluoride

noun
fluo·​ride | \ ˈflȯr-ˌīd How to pronounce fluoride (audio) , ˈflu̇r- \

Kids Definition of fluoride

: a compound of fluorine Many toothpastes contain fluoride to help prevent tooth decay.

fluoride

noun
flu·​o·​ride | \ ˈflu̇(-ə)r-ˌīd How to pronounce fluoride (audio) \

Medical Definition of fluoride

1 : a compound of fluorine with a more electropositive element or radical
2 : the monovalent anion of fluorine

Other Words from fluoride

fluoride adjective

More from Merriam-Webster on fluoride

Nglish: Translation of fluoride for Spanish Speakers

Britannica.com: Encyclopedia article about fluoride

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