[mass noun]the chemical element of atomic number 23, a hard grey metal of the transition series, used to make alloy steels(symbol: V) 钒(符号:V)
A transition metal, vanadium is used to make alloy steels, where it improves strength and hardness; vanadium compounds are used as catalysts and in the ceramic and glass industries. The most important source is the uranium mineral carnotite
语源
19th cent.: modern Latin, from Old Norse Vanadis (a name of the Scandinavian goddess Freyja)