Definition of crystalline adjective from the Oxford Advanced Learner's Dictionary

crystalline

adjective

/ˈkrɪstəlaɪn/

(specialist) made of or similar to crystals
- crystalline structure/rocks
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(formal) very clear synonym transparent
- water of crystalline purity

Word OriginMiddle English: from Old French cristallin, via Latin from Greek krustallinos, from krustallos ‘ice, crystal’.

See crystalline in the Oxford Advanced American DictionarySee crystalline in the Oxford Learner's Dictionary of Academic English

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noun

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