e/Decipium

Information
has gloss	eng: Decipium was the proposed name for a new chemical element isolated by Marc Delafontaine from the mineral samarskite. He published his discovery in 1878 and a followup paper in 1881. Later it was shown that decipium was a mixture of samarium and other rare earth elements.
lexicalization	eng: Decipium
instance of	(noun) a grey lustrous metallic element of the rare earth group; is used in special alloys; occurs in monazite and bastnasite atomic number 62, samarium, Sm