senescence

• 生物体随时间推移逐渐衰老、功能衰退的过程，常伴随疾病易感性增加。也泛指事物由盛转衰的老化现象。

The biological process of aging, characterized by a gradual decline in function and increased vulnerability to disease over time.

不可数

1. Biological agingC2formalscientific

   The process of growing older and the gradual deterioration of functional characteristics in living organisms.

   衰老

   • Senescence in humans is associated with a decline in cellular repair mechanisms.
   • Researchers study plant senescence to understand how leaves change color in autumn.
   • The rate of senescence varies greatly among different animal species.

   同义词aging

2. Property of old ageC2formalscientific

   The state or condition of being old, characterized by reduced vitality and increased vulnerability.

   衰老属性

   • The senescence of the population has significant economic implications.
   • Certain genetic mutations can accelerate the onset of senescence.
   • The study focused on the molecular markers of cellular senescence.

   同义词agednessagingdecrepitudeold age

   反义词vigoryouth