What is the meaning of crystallized?

verb

• Cause to take on a definite and clear shape.
  • usage: "He tried to crystallize his thoughts"
  • synonyms: crystallize, crystallise, crystalise, crystalize
• Make free from confusion or ambiguity; make clear.
  • usage: "Could you clarify these remarks"; "Clear up the question of who is at fault"
  • synonyms: clear, clear up, shed light on, crystallize, crystallise, crystalize, crystalise, straighten out, sort out, enlighten, illuminate, elucidate
• Cause to form crystals or assume crystalline form.
  • usage: "crystallize minerals"
  • synonyms: crystallize, crystallise, crystalize, crystalise
• Assume crystalline form; become crystallized.
  • synonyms: crystallize, crystalize, crystalise, effloresce

adjective

• Having become fixed and definite in form."distinguish between crystallized and uncrystallized opinion- Psychological Abstracts
  • synonyms: crystallised
• Having both internal structure and external form of a crystal.
  • usage: "quartz crystal is perfectly crystallized"
  • synonyms: crystalised