terbium

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