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- Dictionarysenescence/sɪˈnɛsns/
noun
- 1. the condition or process of deterioration with age.
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noun
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Deterioration of function of an organism with age
Senescence or biological aging is the gradual deterioration of functional characteristics in living organisms. Whole organism senescence involves an increase in death rates and/or a decrease in fecundity with increasing age, at least in the later part of an organism's life cycle. However, the resulting effects of senescence can be delayed. The 1934 discovery that calorie restriction can extend lif... Wikipedia