noun
1. the property characteristic of old age
• Syn: ↑agedness
• Hypernyms: ↑oldness
2. the organic process of growing older and showing the effects of increasing age
• Derivationally related forms: ↑senescent
• Hypernyms: ↑organic process, ↑biological process
• Hyponyms: ↑catabiosis
Useful english dictionary. 2012.