crystalise

verb

1. 1

   cause to take on a definite and clear shape

   He tried to crystallize his thoughts

2. 2

   assume crystalline form; become crystallized

3. 3

   cause to form crystals or assume crystalline form

   crystallize minerals

4. 4

   make free from confusion or ambiguity; make clear

   Could you clarify these remarks?

   Clear up the question of who is at fault