self-operation
nounUK /ˌself ɒpəˈreɪʃən/
US /ˌself ɑːpəˈreɪʃən/
When a machine or thing works all by itself without a person helping.
The toy car has self-operation, so it drives around the room on its own.
OTHER MEANINGS
2. The act of doing something by yourself without help from others.
Her self-operation of the lemonade stand impressed the whole neighborhood.
3. In medicine, when a body part or organ works on its own without outside control.
The doctor explained the self-operation of the heart's rhythm.
4. A business or system that runs itself with little human management.
The small shop's self-operation meant the owner could travel while it stayed open.