Bit decay, in computingSoftware decay, in computingDistance decay, in geographyExponential decay, the decrease of a value in proportion to its valueDecay time (fall time), in electronicsNetwork decay (channel drift), in television programmingIn music, how quickly the sound drops to the sustain level after the initial peak, see ADSR envelope
Biology
Bacterial decay, decomposition of organic matterTooth decay (dental caries), in dentistryMitochondrial decay, in genetics
Physics
Orbital decay, the process of prolonged reduction in the height of a satellite's orbitParticle decayRadioactive decayOptical decay, in quantum physics
Mathematics
Exponential decay( decay period )
Psychology and sociology
Decay theory, in psychology and memorySocial decay (decadence), in sociologyUrban decay, in sociology
Entertainment
Decay (DC Comics), a comic book characterDecay Music, 1976 music album by Michael NymanHalf-Life: Decay, a computer game add-onDeekay, a danish production team
