Lavoesium
Pronunciation : La*voe"si*um
Part of Speech : n.
Etymology : [NL., fr. Lavoisier, the celebrated French chemist.] (Chem.)
Definition : Defn: A supposed new metallic element. It is said to have been discovered in pyrites, and some other minerals, and to be of a silver-white color, and malleable.
Source : Webster's Unabridged Dictionary, 1913