terbium

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a metallic element of the rare earth group;
used in lasers;
occurs in apatite and monazite and xenotime and ytterbite
• Syn:
Tb, atomic number 65
• Hypernyms:
metallic element, metal
• Substance Holonyms:
apatite, monazite, gadolinite, ytterbite

• Từ đồng nghĩa / Synonyms:
  Tb, atomic number 65