单词	fluoride
释义	fluoride noun fluo·​ride ˈflȯr-ˌīd  ˈflu̇r-  often attributive 1 : a compound of fluorine 2 : the monovalent anion of fluorine Example Sentences Recent Examples on the Web Certain authorities maintain that fluoride can negatively affect the pineal gland. Deborah Treisman, The New Yorker, 12 Sep. 2022 During the nearly three years since the fluoride vote in 2019, the harassment has grown so intense that the entire elections staff finally quit their jobs en masse. Michael Murney, Chron, 29 Aug. 2022 The new equipment measures different aspects of groundwater, including hardness and fluoride levels. Karl Schneider, The Indianapolis Star, 26 Aug. 2022 This fluoride toothpaste has all the same-cavity fighting power as other whitening versions, but is formulated without some of the ingredients those with teeth sensitivities might find irritating. SELF, 19 July 2022 Sodium fluoride can also help prevent tooth decay and white spots which may be an early sign of tooth decay. Jamie Kim, Good Housekeeping, 21 July 2022 Indiana’s health department offers testing for bacteria, lead, copper, fluoride and other contaminants. Michael Phillis And John Flesher, Anchorage Daily News, 8 June 2022 The fluoride was turned off for a few hours, and the administration has said the action does not constitute a violation of code. Emily Goodykoontz, Anchorage Daily News, 10 May 2022 But the fluoride in toothpaste mixes with your saliva to create a protective coating around your tooth enamel. Marisa Lascala, Good Housekeeping, 1 June 2022 See More Word History First Known Use 1826, in the meaning defined at sense 1 Phrases Containing fluoride hydrogen fluoride lithium fluoride sodium fluoride hydrogen fluoride lithium fluoride sodium fluoride Kids Definition fluoride noun fluo·​ride ˈflȯr-ˌīd  ˈflu̇r- : a compound of fluorine Many toothpastes contain fluoride to help prevent tooth decay. Medical Definition fluoride noun flu·​o·​ride ˈflu̇(-ə)r-ˌīd  1 : a compound of fluorine with a more electropositive element or radical 2 : the monovalent anion of fluorine
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