reflexion
noun
1.
the phenomenon of a propagating wave (light or sound) being thrown back from a surface
2.
expression without words
3.
a remark expressing careful consideration
4.
a calm, lengthy, intent consideration
5.
the ability to reflect beams or rays
6.
a likeness in which left and right are reversed
7.
the image of something as reflected by a mirror (or other reflective material)