# Reflection

Reflection or reflexion may refer to:

## Science and technology

* Reflection (physics), a common wave phenomenon
** Specular reflection, mirror-like reflection of waves from a surface
*** Mirror image, a reflection in a mirror or in water
** Diffuse reflection, where ray incident on the surface is scattered
** Retroreflection, technology for returning light in the direction from which it came
** Signal reflection, in signal transmission
* Elastic scattering, a process in nuclear and particle physics
* Reflection nebula, a nebula that is extended and has no boundaries
* Reflection seismology or seismic reflection, a method of exploration geophysics

### Mathematics

* Reflection principle, in set theory
* Point reflection, a reflection across a point
* Reflection (mathematics), a transformation of a space
* Reflection formula, a relation in a function
* Reflective subcategory, in category theory
* Reflection symmetry, the property of being unchanged by a reflection

### Computing

* Reflection (computer graphics), simulation of reflective surfaces
* Reflection mapping, an efficient image-based lighting technique for approximating the appearance of a reflective surface by means of a precomputed texture
* Reflection (reflective programming), a computer program that accesses or modifies its own code
* Reflection, terminal emulation software by Attachmate
* Reflection (artificial intelligence), a technique used in large language models (LLMs)

## Arts and entertainment
### Film and television

* The Reflection (TV series), an anime series created by Stan Lee and Hiroshi Nagahama
* "Reflection", an episode of Power Rangers: SPD
* Reflection (2018 film), a Burmese film
* Reflection (2021 film), a Ukrainian film

### Music
#### Albums

* Reflection (Brian Eno album) or the title song, 2017
* Reflection (Demis Roussos album), 1984
* Reflection (Derek Minor album), 2016
* Reflection (Loraine James album), 2021
* Reflection (Fifth Harmony album) or the title song, 2015
* Reflection (Hooverphonic album), 2013
* Reflection (Pentangle album) or the title song, 1971
* Reflection (Redrama album), 2014
* Reflection (The Rubyz album) or the title song, 2011
* Reflection (Steamhammer album), or Steamhammer, 1969
* Reflection (Tofubeats album) or the title song, 2022
* Reflection (Unashamed album) or the title song, 1996
* Reflection: Axiom of the Two Wings, by Mari Hamada, 2008
* The Reflection (album) or the title song, by Keb' Mo', 2011
* Reflection, by Mr. Children, 2015
* Reflection, by the Shadows, 1990
* Reflection, by Rophnan, 2018
* Reflection, by Kelly Chen, 2013

#### Songs

* "Reflection" (song), by Christina Aguilera from the soundtrack of the animated Disney film, Mulan (1998)
* "Reflection", by Bobbie Singer, Austria's selection for the Eurovision Song Contest 1999
* "Reflection", by As I Lay Dying from Shadows Are Security, 2005
* "Reflection", by Bleeding Through from Dust to Ashes, 2001
* "Reflection", by BTS from Wings, 2016
* "Reflection", by Mirror from One and All, 2019
* "Reflection", by Prince from Musicology, 2004
* "Reflection", by Seduce the Heaven from Field of Dreams, 2013
* "Reflection", by Tool from Lateralus, 2001
* "Reflection", by Young Dolph & Key Glock from Dum and Dummer, 2019
* "The Reflection", by The Haunted from The Dead Eye, 2006

### Other art

* Reflection, installation art by Shane Cooper
* The Reflection, a work of fiction by Hugo Wilcken

## Other uses

* Self-reflection, the ability to witness and evaluate our own cognitive, emotional, and behavioural processes
* Reflection, a tool used in reflective practice and education
* Reflective surfaces (climate engineering)