What term describes a still life the symbolically represents mortality?

The term that describes a still life symbolically representing mortality is "memento mori." This Latin phrase, meaning "remember that you must die," refers to artistic or symbolic reminders of the inevitability of death. Memento mori still lifes often include objects like skulls, hourglasses, wilting flowers, and decaying fruit, all serving to prompt reflection on the transient nature of life.