rearview mirror

[reer-vyoo]

noun

a mirror mounted on the side, windshield, or instrument panel of an automobile or other vehicle to provide the driver with a view of the area behind the vehicle.

Origin of rearview mirror

First recorded in 1925–30; rear¹ + view

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for rearview mirror

Contemporary Examples of rearview mirror

And I watched them in the rearview-mirror, as they composed themselves and prepared for an assault on the next vehicle.
The Untold Disaster
Jonathan Miller
August 15, 2010