- Vesuvian⇄adj. of, having to do with, or resembling Mount Vesuvius, a volcano southeast of Naples, Italy; volcanic.
- Vesuvian⇄noun 1. Sometimes, vesuvian. (formerly) a kind of match with a sputtering flame used especially for lighting cigars and pipe tobacco.
2. vesuvianite. - Vesuvian⇄Vesuvian, adjective, noun.