Definition of "decay"
- noun
The process or result of being gradually decomposed.
A deterioration of condition.
- verb
To deteriorate, to get worse, to lose strength or health, to decline in quality.
To rot, to go bad.
To change by undergoing fission, by emitting radiation, or by capturing or losing one or more electrons.
To undergo optical decay, that is, to relax to a less excited state, usually by emitting a photon or phonon.
To cause to rot or deteriorate.
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