crystal

Noun
  1. is a type of: solid - matter that is solid at room temperature and pressure
    subtypes:
  2. is a type of: component, constituent, element - an artifact that is one of the individual parts of which a composite entity is made up; especially a part that can be separated from or attached to a system
    subtypes: piezoelectric crystal - a crystal that can be used as a transducer
    is a part of:
    • crystal counter - a counter tube in which an ionizing event increases conductivity
    • crystal detector - a detector consisting of a fine wire in contact with a galena crystal; acts as a rectifier
    • crystal microphone, crystal mike - a microphone in which sound waves vibrate a piezoelectric crystal that generates a varying voltage
    • crystal pickup - a cartridge in which an output voltage is produced by the vibration of a piezoelectric crystal
  3. is a type of: rock, stone - a lump or mass of hard consolidated mineral matter
    subtypes: crystallite - any of numerous minute rudimentary crystalline bodies of unknown composition found in glassy igneous rock
    same as: crystallization
  4. is a type of: natural glass - magma of any composition that cooled very rapidly
    substance holonym: silica, silicon dioxide, silicon oxide - a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelierite
    same as: lechatelierite, quartz, quartz glass, vitreous silica
  5. is a type of: glassware, glasswork - an article of tableware made of glass
  6. is a type of: protection, protective cover, protective covering - a covering that is intend to protect from damage or injury
    is a part of: ticker, watch - a small portable timepiece
    same as: watch crystal, watch glass

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