atomic number 70

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a soft silvery metallic element;
a rare earth of the lanthanide series;
it occurs in gadolinite and monazite and xenotime
• Syn:
ytterbium, Yb
• Hypernyms:
metallic element, metal
• Substance Holonyms:
gadolinite, ytterbite, monazite, xenotime