名詞 erbium:

1. a trivalent metallic element of the rare earth group; occurs with yttrium
   同義詞：Er, atomic number 68

er.bi.um

n.Symbol Er （名詞）符號(hào) Er
A soft, malleable, silvery rare-earth element, used in metallurgy and nuclear research and to color glass and porcelain. Atomic number '8; atomic weight '7.2'; melting point ,497=C; boiling point 2,900=C; specific gravity 9.05; valence 3.See table at element
鉺：一種柔軟的、有延展性的，銀色光澤的稀土元素，用于冶金、核研究及給玻璃和陶瓷上色，原子序數(shù)'8；原子量'7.2'；溶點(diǎn),497=C；沸點(diǎn)2,900=C；比重9.05；化合價(jià)3參見(jiàn) element

來(lái)源：
After Ytterby , a town in Sweden
源自 依特拜 ，瑞典一城鎮(zhèn)