[noun] the phenomenon of a propagating wave (light or sound) being thrown back from a surface Synonyms: reflexion
[noun] expression without words; "tears are an expression of grief"; "the pulse is a reflection of the heart's condition" Synonyms: expression, manifestation, reflexion
[noun] the image of something as reflected by a mirror (or other reflective material); "he studied his reflection in the mirror" Synonyms: reflexion
[noun] a likeness in which left and right are reversed Synonyms: mirror image, reflexion
[noun] (mathematics) a transformation in which the direction of one axis is reversed
[noun] a remark expressing careful consideration Synonyms: observation, reflexion