crystal

Definition

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.

Etymology

From Middle English crystal, cristal, criȝstall, from Old English cristalla (“crystal”), a borrowing from Latin crystallum (“crystal, ice”) (later reinforced from Anglo-Norman cristall and Middle French cristal, from Latin crystallum), from Ancient Greek κρύσταλλος (krústallos, “clear ice”), from κρύος (krúos, “frost”), from Proto-Indo-European *krews- (“hard, hard outer surface, crust”).

Example Sentences

• "He tells me he's been shooting crystal, which I already pretty much know because he does not bother to keep his sleeves rolled down over the needle tracks."
• "Come, let's away. My loue, giue me thy Lippes: Looke to my Chattels, and my Moueables: [...] Goe, cleare they Chryſtalls. Yokefellowes in Armes, let vs to France"