Ves"bi*um (?), n. [NL., from L. Vesuvius, contr. Vesbius, Vesuvius.] Chem.
A rare metallic element of which little is known. It is said by Scacchi to have been extracted from a yellowish incrustation from the cracks of a Vesuvian lava erupted in 1631.
© Webster 1913.