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decay

Dictionary definition · decay

noun

  1. the process of gradually becoming inferior
  2. a gradual decrease; as of stored charge or current
  3. the organic phenomenon of rotting
  4. an inferior state resulting from the process of decaying"the corpse was in an advanced state of decay"
  5. the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation

verb

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

Source: Open English WordNet (CC BY 4.0).