Crystallise

verb

1. To make something form into crystals

   "I crystallized the copper sulphate by slowly cooling a saturated solution."

2. To assume a crystalline form

   "The copper sulphate crystallized from solution."

3. To give something a definite or precise form

   "After some thought, I crystallized my ideas for the paper."

4. To take a definite form

   "My ideas crystallized overnight."

5. To coat something with crystals, especially with sugar

   "We crystallized the fruit by coating in sugar."