feldspar

Từ điển WordNet v3.1 - WordNet Dictionary

noun

any of a group of hard crystalline minerals that consist of aluminum silicates of potassium or sodium or calcium or barium
• Syn:
felspar
• Hypernyms:
spar
• Hyponyms:
orthoclase, plagioclase, oligoclase, moonstone
• Substance Meronyms:
silicon, Si, atomic number 14