fluor

/floo-awr, -er/US // ˈflu ɔr, -ər //UK // (ˈfluːɔː) //

萤火虫,萤石,萤幕,萤光石

Definitions

n.名词 noun

Fluor acid air is procured by dissolving the earthy substance called fluor in vitriolic acid.
The nitrous acid may be exhibited in the form of air, as well as the vitriolic, the marine, and the fluor acids.
Fluor spar is as favorable a gangue for lead as quartz is for gold.
Fluor: fluor-spar as free as possible from other minerals, powdered.
A wide-mouthed clay pot is taken and a little fluor spar added.