Definitions for erbiumˈɜr bi əm
Random House Webster's College Dictionary
er•bi•umˈɜr bi əm(n.)
a rare-earth element, having pink salts.
Ref: Symbol: Er 3
Origin of erbium:
1835–45; < NL, after Ytterby, Sweden, where first found; see -ium2
erbium, Er, atomic number 68(noun)
a trivalent metallic element of the rare earth group; occurs with yttrium
a metallic chemical element (symbol Er) with an atomic number of 68.
Origin: After Ytterby, Sweden.
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
U.S. National Library of Medicine
Erbium. An element of the rare earth family of metals. It has the atomic symbol Er, atomic number 68, and atomic weight 167.26.