crystal Definition in the Cambridge English Dictionary
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Definition of “crystal” - English Dictionary

Definition of "crystal" - American English Dictionary

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crystalnoun

 us   /ˈkrɪs·təl/

crystal noun (ROCK)

[C/U] transparentrock that ​looks like ​ice, or a ​piece of it

crystal noun (GLASS)

[C/U] transparentglass of high ​quality, usually with ​itssurfacecut into ​patterns that ​reflectlight [C/U] A crystal is a ​transparentglass or ​plasticcover for a ​watch or ​clock.

crystal noun (REGULAR SHAPE)

science [C] the ​solidstate of many ​simplesubstances, which have a ​regularshape and ​surfacesarranged in ​similarpatterns
(Definition of crystal from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definition of "crystal" - British English Dictionary

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crystalnoun

uk   us   /ˈkrɪs.təl/

crystal noun (GLASS)

C2 [U] transparentglass of very high ​quality, usually with ​itssurfacecut into ​delicatepatterns: a crystal ​vase [C] US a ​transparentglass or ​plasticcover for a ​watch or ​clock
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crystal noun (MINERAL)

[C] a ​piece of a ​substance that has ​becomesolid, with a ​regularshape: When ​seawater is ​allowed to ​evaporate, ​salt crystals are ​deposited. Cirrus ​clouds are ​composed of ​ice crystals. [C or U] clear, ​transparentrock that is used in ​jewellery, or a ​piece of this: a ​pair of crystal ​earrings
(Definition of crystal from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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