decay

nouns

the process of gradually becoming inferior
decay
is a type of (narrower)
a process existing in or produced by nature (rather than by the intent of human beings)
"the action of natural forces"; "volcanic activity"
action, activity, natural action, natural process
a gradual decrease; as of stored charge or current
decay, decline
the organic phenomenon of rotting
decay, decomposition
an inferior state resulting from the process of decaying
"the corpse was in an advanced state of decay"; "the house had fallen into a serious state of decay and disrepair"
decay
is a type of (narrower)
a condition of damage or decay
unsoundness
the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation
decay, disintegration, radioactive decay

verbs

lose a stored charge, magnetic flux, or current
"the particles disintegrated during the nuclear fission process"
decay, decompose, disintegrate
fall into decay or ruin
"The unoccupied house started to decay"
crumble, decay, dilapidate
is derived from
decadent
undergo decay or decomposition
"The body started to decay and needed to be cremated"
decay
is a type of (narrower)
undergo a change; become different in essence; losing one's or its original nature
"She changed completely as she grew older"; "The weather changed last night"
change