/floor"een, -in, flawr"-, flohr"-/ , n. Chem.
the most reactive nonmetallic element, a pale-yellow, corrosive, toxic gas that occurs combined, esp. in fluorite, cryolite, phosphate rock, and other minerals. Symbol: F; at. wt.: 18.9984; at. no.: 9.
[ 1805-15; FLUOR(IC) + -INE 1 ]