Decay

Decay may refer to:

Science and technology

• Bit decay, in computing
• Software decay, in computing
• Distance decay, in geography
• Exponential decay, the decrease of a value in proportion to its value
• Decay time (fall time), in electronics
• Network decay (channel drift), in television programming
• In music, how quickly the sound drops to the sustain level after the initial peak, see ADSR envelope

Biology

• Bacterial decay, 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

• Decay (DC Comics), a comic book character
• Decay Music, 1976 music album by Michael Nyman
• Half-Life: Decay, a 2001 video game add-on
• Deekay, a Danish production team
• Decay (film), a 2012 British zombie film set at the Large Hadron Collider
• "Decay" (Sevendust song), 2013
• "Decay" (Ride song)
• "Decay" (Biohazard song)

Other

• Beta decay (finance)

See also

• All pages with titles beginning with Decay
• All pages with titles containing Decay
• Weathering
• Decomposition (disambiguation)