Decay
# Decay

Decay may refer to:

## Science and technology

* Bit decay, in computing
* Software decay, in computing
* Distance decay, in geography
* Decay time (fall time), in electronics

### Biology

* Decomposition of organic matter
* Tooth decay (dental caries), in dentistry
* Mitochondrial decay, in genetics

### Physics

* Orbital decay, the process of prolonged reduction in the height of a satellite's orbit
* Particle decay
* Radioactive decay
* Optical decay, in quantum physics

### Mathematics

* Exponential decay

### Psychology and sociology

* Decay theory, in psychology and memory
* Social decay (decadence), in sociology
* Urban decay, in sociology

## Entertainment

* Network decay (channel drift), in television programming
* Decay (DC Comics), a comic book character
* Half-Life: Decay, a 2001 video game add-on
* Deekay, a Danish production team
* Decay (professional wrestling), a professional wrestling stable in TNA Wrestling

### Film

* Decay (2012 film), a 2012 zombie film set at the Large Hadron Collider
* Decay (2015 film), a 2015 American film

### Music

* how quickly the sound drops to the sustain level after the initial peak, see ADSR envelope
* "Decay" (Ride song)
* "Decay" (Biohazard song)
* "Decay" (Sevendust song), 2013
* Decay Music, 1976 music album by Michael Nyman
* The Years of Decay, music album by Overkill (band)
* In Decay, 2012 album by Com Truise

## Other

* Beta decay (finance)
