ytterbium
/ɪˈtɜːbɪəm/noun
mass noun
- the chemical element of atomic number 70, a silvery-white metal of the lanthanide series (Symbol: Yb)（化学元素）镱（符号：Yb）。
词源
late 19th cent.: modern Latin， from Ytterby, the name of a Swedish quarry where it was first found.