vent window

noun

1. (on an automobile) a small, pivoting window fitted into a main side window to provide draft-free ventilation.

Example Sentences

I got in on the passenger’s side, where my mother used to sit, and reached to open the rear vent window for air.

From New York Times

A broken rear light or vent window, too much tint on the windows, a rear licence plate but no front one, or even too many air fresheners hanging from the rearview mirror – these are all valid reasons for a traffic stop.

From The Guardian

Friday, and the thief got in through the rear vent window to take a backpack with a laptop, the police said.

From Washington Post

To the list of items you should no longer expect to see in a new car — those once-common features like a metal ignition key, an ashtray or a vent window that swings open — you may soon be adding the spare tire.

From New York Times

Police were looking for three men in a 2001 gold Chevrolet Impala with a broken vent window.

From Washington Post