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Dictionary definition for: Crystal

1. (n) a solid formed by the solidification of a chemical and having a highly regular atomic structure

2. (n) a crystalline element used as a component in various electronic devices

3. (n) a rock formed by the solidification of a substance; has regularly repeating internal structure; external plane faces

4. (n) colorless glass made of almost pure silica

5. (n) glassware made of quartz

6. (n) a protective cover that protects the face of a watch

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