Definition of Decay

Noun

• the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation
  - radioactive decay disintegration
• 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"
  
• the organic phenomenon of rotting
  decomposition
• a gradual decrease
  as of stored charge or current
  decline
• the process of gradually becoming inferior
  

Verb

• undergo decay or decomposition
  "The body started to decay and needed to be cremated"
  
• fall into decay or ruin
  "The unoccupied house started to decay"
  crumble dilapidate
• lose a stored charge, magnetic flux, or current
  "the particles disintegrated during the nuclear fission process"
  disintegrate decompose

• Scrabble® score of the decay (11)
• Word Chums® score of the decay (13)
• Words With Friends® score of the decay (11)