[floo-awr, -er] 
| var. of fluoro- before a vowel: fluorene; fluoric. |
[floor-ahyt, flawr-, flohr-] | a common mineral, calcium fluoride, CaF2, occurring in green, blue, purple, yellow, or colorless crystals, usually in cubes: the principal source of fluorine, used also as a flux in metallurgy and for ornament. |
| 1. | a combining form with the meanings “fluorine,” “fluoride,” used in the formation of compound words: fluorocarbon. |
| 2. | a combining form with the meaning “fluorescence,” used in the formation of compound words: fluoroscopy. |
| flu·or (flōō'ôr', -ər) n. See fluorite. [New Latin, mineral belonging to a group used as fluxes, from Latin, a flowing, from fluere, to flow; see bhleu- in Indo-European roots.] |
| fluor·ite (flŏŏr'īt', flôr'-, flōr'-) n. A mineral, essentially CaF2, that is often fluorescent in ultraviolet light and occurs in light green, blue, yellow, brown, and colorless forms. Also called fluor, fluorspar. |
fluor- pref.
Variant of fluoro-.
fluoro- or fluor-
pref.
Fluorine: fluorosis.
Fluorescence: fluoroscope.
