FLUOR-

combining form

or fluoro-

Etymology: French fluor-, from New Latin fluor (mineral belonging to a group including fluorite)

1.

a. : fluorine

fluor hydric

fluoro form

b. now usually fluoro- : containing fluorine in place of hydrogen — in names of organic compounds

fluoro benzene

c. now usually fluoro- : containing fluorine regarded as replacing hydroxyl or oxygen or as coordinated to a central atom — in names of inorganic acids and salts

fluoro molybdate

d. : containing fluorine as fluoride sometimes replacing another element or group — in names of minerals and salts

fluor apatite

fluoro chloride

2. also fluori- : fluorescence

fluor ene

fluoro scope

fluori meter