Definition of fluoride
1 : a compound of fluorine
2 : the monovalent anion of fluorine
First Known Use of fluoride
FLUORIDE Defined for English Language Learners
Definition of fluoride for English Language Learners
: a chemical that is sometimes added to drinking water and toothpaste to help keep teeth healthy
FLUORIDE Defined for Kids
Definition of fluoride for Students
: a compound of fluorine Many toothpastes contain fluoride to help prevent tooth decay.
Seen and Heard
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