turndetector
nounUK /ˈtɜːn.dɪˌtek.tə/
US /ˈtɝːn.dɪˌtek.tɚ/
A turndetector is a thing that tells you when someone or something turns.
The turndetector beeped when the robot turned around.
OTHER MEANINGS
2. A device that notices when a car or bike changes direction.
The turndetector helped the car know it was turning left.
3. A tool that checks if a spinning part has turned.
The turndetector showed that the wheel had turned twice.
4. A game helper that spots when a player turns their body.
The turndetector lit up when the player spun around.