crystal
/ˈkɹɪstəl/ · crys·tal
noun
- A solid composed of an array of atoms or molecules possessing long-range order and arranged in a pattern which is periodic in three dimensions. The scientist examined the crystal under a microscope to study its lattice structure.
- A piece of glimmering, shining mineral resembling ice or glass. She set a flawless crystal on the table as the centerpiece of the arrangement.
- A fine type of glassware, or the material used to make it. The chandelier was made of delicate crystal that caught every beam of light.
adjective
- Very clear; transparent and easy to understand. Do I make myself clear? Crystal.
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Did you know? The word ‘crystal’ was once used to describe ice because ancient peoples believed that clear ice was a form of permanent stone.