WordRel.com

• a protective cover that protects the face of a watch

  synonym	watch crystalwatch glass
  holo part	tickerwatch
  hypernym	protectionprotective coverprotective covering

• glassware made of quartz

  hypernym

  glasswareglasswork

• a crystalline element used as a component in various electronic devices

  holo part	crystal countercrystal detectorcrystal microphonecrystal mikecrystal pickup
  hypernym	componentconstituentelement
  hyponym	piezoelectric crystal

• a rock formed by the solidification of a substance; has regularly repeating internal structure; external plane faces

  synonym	crystallization
  derivation	crystalizecrystalize
  hypernym	rockstone
  hyponym	crystallite

• a solid formed by the solidification of a chemical and having a highly regular atomic structure

  derivation	crystalizecrystalizecrystallizecrystallize
  hypernym	solid
  hyponym	diamond dustflakefrost mistfrost snowgemgemstoneiceice crystalice needlemicrocrystalpoudrinsnow mistsnowflakestonetwinswater ice

• colorless glass made of almost pure silica

  synonym	lechatelieritequartzquartz glassvitreous silica
  derivation	crystalizecrystalizecrystallizecrystallize
  hypernym	natural glass
  mero substance	quartz sandsilicasilicon dioxidesilicon oxide