1. a catch or pawl that prevents motion in a mechanism until released
Usage: mechanical engineering
2. a device that holds something in position by engaging with notches or grooves
Usage: technical

Examples

• The detent keeps the gear from slipping backward.
• Press the button to release the detent mechanism.
• The camera lens clicks into place when the detent engages.
• A spring-loaded detent holds the lever in position.
• The detent ball prevents the valve from moving accidentally.
• You can feel the detent click as you turn the dial.