senescence [sɪˈnesns]

例句:

• It affects tuberization, leaf senescence, and dormancy.
  它影响块茎形成 、 叶子衰老和休眠.
  
• Calcium apparently acts in a similar manner as some of the hormones that defer senescence.
  钙这种明显的作用同某些激素能够延缓衰老的作用方式相似.
  
• Senescence may be defined as the deteriorative events which precede the death of a mature cell.
  衰老是成熟细胞死亡之前的败坏过程.
  
• "Iron accumulates with senescence in several organs" Leukemia and the iron loading disease polycythemia are closely related.
  来自SA
• One result is that some cells go into a state known as senescence, where they are alive but stop dividing.
  来自WSJ
• It's hard to argue with the skill, the care, the detail, the sense of power instincts operating in senescence.
  来自NEWYORKER