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Từ điển WordNet v3.1 - WordNet Dictionary
bastnaesite
a yellow-to-brown mineral that is a source of rare earth elements
• Syn:
bastnasite
• Hypernyms:
mineral
• Substance Meronyms:
cerium, Ce, atomic number 58, neodymium, Nd,
Nd, praseodymium, Pr, atomic number 59, samarium,
Sm, atomic number 62
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