crys ‧ tal ‧ lize BrE AmE ( also crystallise British English ) /ˈkrɪstəlaɪz/ verb
1 . [intransitive and transitive] if a liquid crystallizes, it forms ↑ crystal s :
The liquid will crystallize at 50 degrees centigrade.
2 . [intransitive and transitive] if an idea, plan etc crystallizes or is crystallized, it becomes very clear in your mind:
Inside her a thought was crystallizing.
—crystallization /ˌkrɪstəlaɪˈzeɪʃ ə n $ -lə-/ noun [uncountable]