1. the process by which a liquid or dissolved substance forms solid crystals
Usage: British spelling; American spelling is 'crystallization'
2. the process of becoming clear, definite, or concrete; the point at which something takes on a fixed or final form
Usage: figurative use

Examples

• The crystallisation of salt occurs when seawater evaporates in shallow pools.
• Sugar crystallisation happens when a supersaturated solution cools down.
• The crystallisation of her ideas into a formal proposal took several months.
• The team witnessed the crystallisation of their strategy during the planning meeting.
• Slow crystallisation produces larger, more perfect crystals than rapid cooling.
• The crystallisation of public opinion on the issue became evident after the debate.