rotatingbutton
nounUK /rəʊˈteɪtɪŋ ˈbʌtən/
US /ˈroʊteɪtɪŋ ˈbʌtən/
A rotating button is a button you can turn around in a circle.
Turn the rotating button to make the music louder.
OTHER MEANINGS
2. A button on a screen that spins when you tap it.
Tap the rotating button to refresh the page.
3. A small wheel-like button used to adjust a setting.
The rotating button on the radio changes the station.
4. A button that turns to lock or unlock something.
Turn the rotating button to open the toy box.