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Definition of 'decay'


  1. the process of gradually becoming inferior
  2. a gradual decrease; as of stored charge or current
       Synonyms: decline
  3. the organic phenomenon of rotting
       Synonyms: decomposition
  4. 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"
  5. the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation
       Synonyms: radioactive decay disintegration


  1. lose a stored charge, magnetic flux, or current; "the particles disintegrated during the nuclear fission process"
       Synonyms: disintegrate decompose
  2. fall into decay or ruin; "The unoccupied house started to decay"
       Synonyms: crumble delapidate
  3. undergo decay or decomposition; "The body started to decay and needed to be cremated"

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