1.Definition: a gradual decrease; as of stored charge or current

Related Noun(s):decline

Category: General

2.Definition: 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"

Category: General

3.Definition: the organic phenomenon of rotting

Related Noun(s):decomposition

Category: General

4.Definition: the process of gradually becoming inferior

Category: General

5.Definition: the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation

Related Noun(s):disintegration

Category: General