verb (v)

• cause to take on a definite and clear shape(verb.change)

  Example:
  He tried to crystallize his thoughts.
  

  Synonym:
  crystalise, crystalize, crystallise
  

  source: wordnet30
• make free from confusion or ambiguity; make clear(verb.cognition)

  Synonym:
  clear, clear up, crystalise, crystalize, crystallise, elucidate, enlighten, illuminate, shed light on, sort out, straighten out
  

  source: wordnet30
• cause to form crystals or assume crystalline form(verb.change)

  Example:
  Crystallize minerals.
  

  source: wordnet30
• assume crystalline form; become crystallized(verb.change)

  Synonym:
  crystalise, crystalize, effloresce
  

  source: wordnet30
• To cause to form crystals, or to assume the crystalline form.(verb)

  source: webster1913
• To be converted into a crystal; to take on a crystalline form, through the action of crystallogenic or cohesive attraction.(verb)

  source: webster1913