rearview mirror: Meaning and Definition of

rear'view mir'ror

Pronunciation: (rēr'vy"), [key]
  1. 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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.