Definition of "Reflection" :

noun: the image of something as reflected by a mirror (or other reflective material)

"He studied his reflection in the mirror."

noun: a likeness in which left and right are reversed

noun: the ability to reflect beams or rays

noun: a calm, lengthy, intent consideration

noun: a remark expressing careful consideration

noun: expression without words

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

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

noun: (mathematics) a transformation in which the direction of one axis is reversed