To deteriorate, to get worse, to lose strength or health, to decline in quality.
To undergo bit rot, that is, gradual degradation.
To undergo optical decay, that is, to relax to a less excited state, usually by emitting a photon or phonon.
Loss of airspeed due to drag.
To undergo software rot, that is, to fail to be updated in a changing environment, so as to eventually become legacy or obsolete.
To change by undergoing fission, by emitting radiation, or by capturing or losing one or more electrons; to undergo radioactive decay.
To cause to rot or deteriorate.
Of an array: to lose its type and dimensions and be reduced to a pointer, for example when passed to a function.
To rot, to go bad.
To undergo prolonged reduction in altitude (above the orbited body).
The process or result of being gradually decomposed.
A deterioration of condition; loss of status or fortune.
The situation, in programming languages such as C, where an array loses its type and dimensions and is reduced to a pointer, for example by passing it to a function.
To decline or deteriorate shockingly.