fluorine Hear it!

fluorine definition

fluo·rine (flôr′ēn′, flo̵or′-)

noun

a corrosive, toxic, greenish-yellow gaseous chemical element, one of the halogens and the most reactive nonmetallic element, forming fluorides with almost all known elements: symbol, F; at. no., 9

Etymology: fluor + -ine

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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