Noun crystal has 6 senses
  1. crystal - a solid formed by the solidification of a chemical and having a highly regular atomic structure
    --1 is a kind of
    solid
    --1 has particulars:
     snowflake, flake; ice crystal, snow mist, diamond dust, poudrin, ice needle, frost snow, frost mist; gem, gemstone, stone; twins; ice, water ice
    Derived forms: verb crystallize3, verb crystallize4, verb crystalize2, verb crystalize3
  2. crystal - a crystalline element used as a component in various electronic devices
    --2 is a kind of
    component, constituent, element
    --2 is a part of
     crystal counter; crystal detector; crystal microphone; crystal pickup
    --2 has particulars: piezoelectric crystal
  3. crystal, crystallization - a rock formed by the solidification of a substance; has regularly repeating internal structure; external plane faces
    --3 is a kind of rock, stone
    --3 has particulars: crystallite
    Derived forms: verb crystalize2, verb crystalize3
  4. quartz glass, quartz, vitreous silica, lechatelierite, crystal - colorless glass made of almost pure silica
    --4 is a kind of natural glass
    Derived forms: verb crystallize3, verb crystallize4, verb crystalize2, verb crystalize3
  5. crystal - glassware made of quartz
    --5 is a kind of
    glassware, glasswork
  6. crystal, watch crystal, watch glass - a protective cover that protects the face of a watch
    --6 is a kind of protective covering, protective cover, protection
    --6 is a part of watch, ticker
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