crystalline
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(a) consisting of or containing or of the nature of crystals
- granite is crystalline
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(s) distinctly or sharply outlined
- "crystalline sharpness of outline"- John Buchan
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(s) transmitting light; able to be seen through with clarity
- the cold crystalline water of melted snow
- crystal clear skies
- could see the sand on the bottom of the limpid pool
- lucid air
- a pellucid brook
- transparent crystal