quartz

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. colorless glass made of almost pure silica (Freq. 1)
• Syn:
quartz glass, vitreous silica, lechatelierite, crystal
• Derivationally related forms:
crystallize (for: crystal), crystalize (for: crystal)
• Hypernyms:
natural glass
• Substance Meronyms:
silica, silicon oxide, silicon dioxide
2. a hard glossy mineral consisting of silicon dioxide in crystal form;
present in most rocks (especially sandstone and granite);
yellow sand is quartz with iron oxide impurities
• Hypernyms:
mineral
• Hyponyms:
quartz crystal, rock crystal, transparent quartz, cairngorm, smoky quartz,
amethyst, chalcedony, calcedony, citrine, rose quartz, sunstone,
aventurine, topaz, false topaz, common topaz
• Substance Meronyms:
silicon, Si, atomic number 14, silica, silicon oxide, silicon dioxide

• Từ đồng nghĩa / Synonyms:
  quartz glass, vitreous silica, lechatelierite, crystal