fluor
/ˈflʊər/
noun
- A mineral form of calcium fluoride that glows under ultraviolet light; also used in making lenses and ceramics.
- Some high-quality camera lenses are made with fluor to reduce distortion.
- Miners often find fluor alongside other minerals in the earth.
- The museum displayed a beautiful piece of fluor that glowed blue under a black light.
Synonyms