crystal

Meanings

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.
• A piece of glimmering, shining mineral resembling ice or glass.
• A fine type of glassware, or the material used to make it.
• Crystal meth: methamphetamine hydrochloride.
• a person's eye.
• The glass over the dial of a watch case.

Adjective

• Very clear.

Origin

• From Middle English crystal, cristal, criȝstall, from Old English cristalla, a borrowing from Latin crystallum (later reinforced from Anglo-Norman cristall and Middle French cristal, from Latin crystallum), from Ancient Greek κρύσταλλος ("clear ice"), from κρύος, from the Proto-Indo-European *krus-, *kru-.