"decaying" in the verb sense
1. disintegrate, decay, decompose
lose a stored charge, magnetic flux, or current
"the particles disintegrated during the nuclear fission process"
2. decay, crumble, dilapidate
fall into decay or ruin
"The unoccupied house started to decay"
undergo decay or decomposition
"The body started to decay and needed to be cremated"
Source: WordNet® (An amazing lexical database of English)
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