crystal

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. a solid formed by the solidification of a chemical and having a highly regular atomic structure (Freq. 4)
• Derivationally related forms:
crystallize, crystalize
• Hypernyms:
solid
• Hyponyms:
snowflake, flake, ice crystal, snow mist, diamond dust,
poudrin, ice needle, frost snow, frost mist, gem, gemstone,
stone, twins, ice, water ice
2. a crystalline element used as a component in various electronic devices (Freq. 2)
• Hypernyms:
component, constituent, element
• Hyponyms:
piezoelectric crystal
• Part Holonyms:
crystal counter, crystal detector, crystal microphone, crystal pickup
3. a rock formed by the solidification of a substance;
has regularly repeating internal structure;
external plane faces (Freq. 1)
• Syn:
crystallization
• Derivationally related forms:
crystallize (for: crystallization), crystalize
• Hypernyms:
rock, stone
• Hyponyms:
crystallite
4. colorless glass made of almost pure silica
• Syn:
quartz glass, quartz, vitreous silica, lechatelierite
• Derivationally related forms:
crystallize, crystalize
• Hypernyms:
natural glass
• Substance Meronyms:
silica, silicon oxide, silicon dioxide
5. glassware made of quartz
• Hypernyms:
glassware, glasswork
6. a protective cover that protects the face of a watch
• Syn:
watch crystal, watch glass
• Hypernyms:
protective covering, protective cover, protection
• Part Holonyms:
watch, ticker

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