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Từ điển WordNet v3.1 - WordNet Dictionary
monazite
a reddish-brown mineral containing rare earth metals;
an important source of thorium and cerium
• Hypernyms:
mineral
• Substance Meronyms:
cerium, Ce, atomic number 58, europium, Eu,
atomic number 63, neodymium, Nd, atomic number 60, praseodymium, Pr,
atomic number 59, samarium, Sm, atomic number 62, terbium, Tb,
atomic number 65, thorium, Th, atomic number 90, thulium, Tm,
atomic number 69, ytterbium, Yb, atomic number 70
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