noun (n)

• the fraction of radiant energy that is reflected from a surface(noun.quantity)

  Synonym:
  coefficient of reflection, reflectance, reflection factor
  

  source: wordnet30
• the ability to reflect beams or rays(noun.attribute)

  Synonym:
  reflection, reflexion
  

  source: wordnet30
• the capability of quiet thought or contemplation(noun.attribute)

  Synonym:
  reflectiveness
  

  source: wordnet30