What is the meaning of Senescence?

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.

Condition when the cell ceases to divide.

Source: wiktionary.org