fluorine

noun/ˈflʊəriːn/

Frequency rank: #17,105 most common English word

Meaning

a pale yellow, highly reactive gaseous chemical element with atomic number 9, belonging to the halogen group.

Illustration for the English word “fluorine”

Example sentence

Scientists handle fluorine with extreme caution because it is the most reactive of all elements.

Synonyms & related words

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