noun (n)

• a calm, lengthy, intent consideration(noun.cognition)

  Synonym:
  contemplation, musing, reflexion, rumination, thoughtfulness
  

  source: wordnet30
• the phenomenon of a propagating wave (light or sound) being thrown back from a surface(noun.phenomenon)

  Synonym:
  reflexion
  

  source: wordnet30
• expression without words(noun.communication)

  Example:
  The pulse is a reflection of the heart's condition.
  

  Synonym:
  expression, manifestation, reflexion
  

  source: wordnet30
• a likeness in which left and right are reversed(noun.attribute)

  Synonym:
  mirror image, reflexion
  

  source: wordnet30
• the image of something as reflected by a mirror (or other reflective material)(noun.artifact)

  Example:
  He studied his reflection in the mirror.
  

  source: wordnet30
• (mathematics) a transformation in which the direction of one axis is reversed(noun.linkdef)

  source: wordnet30
• a remark expressing careful consideration(noun.communication)

  Synonym:
  observation, reflexion
  

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

  Synonym:
  reflectivity, reflexion
  

  source: wordnet30
• The act of reflecting, or turning or sending back, or the state of being reflected.(noun)

  source: webster1913