#decay  the process of gradually becoming inferior
  supertype:  #natural_process__naturalproces__natural_action__naturalaction__action__activity  a process existing in or produced by nature (rather than by the intent of human beings); "the action of natural forces"; "volcanic activity"
  subtype:  #caries__cavity__dental_caries__tooth_decay__toothdecay  soft decayed area in a tooth; progressive decay can lead to the death of a tooth
  subtype:  #corruption  decay of matter (as by rot or oxidation)
  subtype:  #rotting__decomposition__rot__putrefaction  (biology) decaying caused by bacterial or fungal action
  subtype:  #dilapidation__ruin  the process of becoming dilapidated
  subtype:  #spoilage.decay__spoiling  the process of becoming spoiled
     subtype:  #mildew.spoilage__mold  the process of becoming mildewed
     subtype:  #souring  the process of becoming sour

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