rearview mirror
noun
UK/ˌrɪə.vjuː ˈmɪr.əʳ/
US/ˌrɪr.vju ˈmɪr.ɚ/
Definitions of rearview mirror noun
- Countable
A mirror in a vehicle that allows the driver to see the area behind the vehicle.
Always check your rearview mirror before changing lanes.
He saw a police car behind them in the rearview mirror.
Adjusting the rearview mirror is an essential step for safe driving.