'Decipium' definitions:

Definition of 'Decipium'

From: GCIDE
  • Decipium \De*cip"i*um\, n. [NL., fr. L. decipere to deceive.] (Chem.) A supposed rare element, said to be associated with cerium, yttrium, etc., in the mineral samarskite, and more recently called samarium. Symbol Dp. See Samarium. [1913 Webster]