Meaning of CRYSTAL in English

CRYSTAL

I. ˈkris-t ə l noun

Etymology: Middle English cristal, from Anglo-French, from Latin crystallum, from Greek krystallos — more at crust

Date: 13th century

1. : quartz that is transparent or nearly so and that is either colorless or only slightly tinged

2. : something resembling crystal in transparency and colorlessness

3. : a body that is formed by the solidification of a chemical element, a compound, or a mixture and has a regularly repeating internal arrangement of its atoms and often external plane faces

4. : a clear colorless glass of superior quality ; also : objects or ware of such glass

5. : the glass or transparent plastic cover over a watch or clock dial

6. : a crystalline material used in electronics as a frequency-determining element or for rectification

7. : ice 7 ; broadly : methamphetamine in any form when used illicitly

II. adjective

Date: 14th century

1. : consisting of or resembling crystal : clear , lucid

2. : relating to or using a crystal

a crystal radio receiver

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.