senescence

The condition of growing old, or of decaying by time; decadence.

The state of growing old; decay by time.

The state or process of ageing, especially in humans; old age.

Ceasing to divide by mitosis because of shortening of telomeres or excessive DNA damage.

Old age; accumulated damage to macromolecules, cells, tissues and organs with the passage of time.

Fruit senescence, leading to ripening of fruit.

the property characteristic of old age

the organic process of growing older and showing the effects of increasing age