ERBIUM
erbium, Er, atomic number
(noun) a trivalent metallic element of the rare earth group; occurs with yttrium
Source: WordNet® 3.1
Etymology
Noun
erbium (countable and uncountable, plural erbiums)
A chemical element (symbol Er) with atomic number 68: a silvery-white metal, in nature always found in combination with other elements.
(countable) A single atom of this element.
Anagrams
• imbrue, imbuer, murbie
Source: Wiktionary
Er"bi*um, n. Etym: [NL. from Ytterby, in Sweden, where gadolinite is
found. Cf. Terbium, Yttrium, Ytterbium.] (Chem.)
Definition: A rare metallic element associated with several other rare
elements in the mineral gadolinite from Ytterby in Sweden. Symbol Er.
Atomic weight 165.9. Its salts are rose-colored and give
characteristic spectra. Its sesquioxide is called erbia.
Source: Webster’s Unabridged Dictionary 1913 Edition