Erbium

n. rare metallic chemical element

Erbium (IPA: ) is a chemical element in the periodic table that has the symbol Er and atomic number 68. A rare, silvery, white metallic lanthanide; Erbium is a solid in its normal state. It is a rare earth element, erbium is associated with several other rare elements in the mineral gadolinite from Ytterby in Sweden.
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Noun
1. a trivalent metallic element of the rare earth group; occurs with yttrium
(synonym) Er, atomic number 68
(hypernym) metallic element, metal
(substance-holonym) gadolinite, ytterbite

n. erbium, rare metallic chemical element

n. erbium, rare metallic chemical element