buttonbezel
nounUK /ˈbʌtənˌbɛzəl/
US /ˈbʌtənˌbɛzəl/
A buttonbezel is the ring around a button that holds it in place.
The buttonbezel on my game controller keeps the button from falling out.
OTHER MEANINGS
2. A decorative rim around a push-button on a device.
The old radio had a shiny chrome buttonbezel.
3. The raised edge that protects a button from being pressed by accident.
The buttonbezel stops the power button from turning on in your bag.
4. A removable cover ring used to change the look of a button.
She swapped the buttonbezel to match her keyboard's color.