stoppingmechanism

noun
UK /ˈstɒpɪŋ ˌmekənɪzəm/
US /ˈstɑːpɪŋ ˌmekənɪzəm/

A stopping mechanism is a part that makes a machine or thing stop.

The elevator has a stopping mechanism that keeps it from falling.


OTHER MEANINGS

2. A system or rule that brings an activity to an end.

The referee used a stopping mechanism to pause the game.

3. A safety device that halts motion in an emergency.

The roller coaster's stopping mechanism kicked in during the storm.

4. A natural process that ends growth or change.

Scientists studied the stopping mechanism that halts cell division.