· a solid formed by the solidification of a chemical and having a highly regular atomic structure
Hypernym(s): solid
· a crystalline element used as a component in various electronic devices
Hypernym(s): component, constituent, element
· a rock formed by the solidification of a substance; has regularly repeating internal structure; external plane faces
Synonym(s): crystallization
· colorless glass made of almost pure silica
Synonym(s): quartz_glass, quartz, vitreous_silica, lechatelierite
Hypernym(s): natural_glass
· glassware made of quartz
Hypernym(s): glassware, glasswork
· a protective cover that protects the face of a watch
Synonym(s): watch_crystal, watch_glass
Hypernym(s): protective_covering, protective_cover, protection