erbium
/ˈɜːbɪəm/noun
mass noun
- the chemical element of atomic number 68, a soft silvery-white metal of the lanthanide series. (Symbol: Er)（化学元素）铒（符号：Er）。
词源
mid 19th cent.: modern Latin, from （Ytt ）erb （y ）, in Sweden, where it was first found. Compare with YTTERBIUM.