The state or condition of being old; the stage of life where one is advanced in age; old age
The state or process of ageing, especially in humans; old age.
Old age; accumulated damage to macromolecules, cells, tissues and organs with the passage of time.
Fruit senescence, leading to ripening of fruit.
Ceasing to divide by mitosis because of shortening of telomeres or excessive DNA damage.
Condition when the cell ceases to divide.