crystal

• Substance solide dont les atomes sont disposés selon une structure ordonnée et répétitive, ou morceau d'une telle substance, souvent transparent et utilisé en joaillerie ou en optique. Peut aussi désigner un verre de haute qualité ou un bonbon dur et brillant.

A noun referring to a solid material whose atoms are arranged in a highly ordered, repeating pattern, or a piece of such material, often transparent and used in jewelry or optics.

1. Solid materialB1formalscientific

   A solid substance with a regular, repeating arrangement of atoms or molecules.

   Cristal (solide)

   • The mineral formed beautiful crystals deep underground.
   • Scientists study crystal structures using X-rays.
   • Salt crystals are a common example of a crystalline solid.

2. A2formal

   A type of very clear, high-quality glass, often used for decorative items or tableware.

   Cristal (verre de haute qualité)

   • She placed the flowers in a beautiful crystal vase.
   • The chandelier was made of sparkling crystal.
   • He drank water from a fine crystal glass.

   Synonymescut glassflint glasslead glass

3. Clear quartzA2informal

   A transparent, colorless form of quartz, often used in jewelry or for spiritual purposes.

   Quartz clair

   • She wears a crystal pendant around her neck.
   • He believes that crystals have healing properties.
   • The shop sells various crystals for meditation.

   Synonymesrock crystal