terbium

 
Pronunciation: /ˈtəːbɪəm/

noun

[mass noun]
  • the chemical element of atomic number 65, a silvery-white metal of the lanthanide series. (Symbol: Tb)

Origin:

mid 19th century: modern Latin, from Ytterby, the name of a village in Sweden where it was discovered. Compare with erbium and ytterbium