Solid in which the constituent atoms, molecules, or ions are packed in a regularly ordered, repeating pattern extending in all three spatial dimensions.
An addictive psychoactive drug of formula Cв‚Ѓв‚ЂHв‚Ѓв‚…N.
glassware made of quartz
a crystalline element used in various electronic devices
a rock formed by the solidification of a substance; has regularly repeating internal structure; external plane faces
a solid formed by the solidification of a chemical and having a highly regular atomic structure
a protective cover that protects the face of a watch
colorless glass made of almost pure silica
a crystalline element used as a component in various electronic devices