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crystal

noun (GLASS)
 
 
/ˈkrɪs.təl/

Definition

C2 [U] transparent glass of very high quality, usually with its surface cut into delicate patterns: a crystal vaseGlass [C] US a transparent glass or plastic cover for a watch or clockWatches and clocksLids, covers and stoppers
(Definition of crystal noun (GLASS) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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