screenbutton

noun
UK /ˈskriːnˌbʌtən/
US /ˈskriːnˌbʌtən/

A small picture or word on a screen that you press to make something happen.

Tap the screenbutton to start the game.


OTHER MEANINGS

2. A physical button located on the bezel or frame of a display device.

The monitor's screenbutton lets you adjust the brightness.

3. A clickable element in a graphical user interface that triggers an action.

The screenbutton labeled Save stores your document.

4. A control on a touchscreen device used to navigate or confirm choices.

Press the screenbutton at the bottom to go back.