vanadium

noun

Etymology: Etymology tree Proto-Indo-European *h₁weh₂-der. Proto-Germanic *wanaz Old Norse vanr Old Norse Vana Proto-Indo-European *dʰeh₁- Proto-Indo-European *-s Proto-Indo-European *dʰéh₁sder. Proto-Germanic *dīsiz Old Norse dís Old Norse Dís Old Norse Vanadís Proto-Indo-European *-yós Proto-Italic *-ios Old Latin -ios Latin -ius New Latin -ium New Latin vanadiumder. English vanadium Mid 19th century, from New Latin vanadium.

1. A chemical element (symbol V) with atomic number 23; it is a transition metal, used in the production of special steels.
2. An atom of this element.