terbium
noun /ˈtɜːbiəm/
/ˈtɜːrbiəm/
[uncountable] (symbol Tb)
- a chemical element. Terbium is a silver-white metal used in lasers, X-rays and television tubes.
铽 词源mid 19th cent.: modern Latin, from Ytterby, the name of a village in Sweden where it was discovered. Compare with erbium and ytterbium.