drive-through

Short definition from Wiktionary

Adjective

1. 1
   Of an establishment, providing service to occupants of automobiles while they are in their still-running vehicle, especially when the vehicle does not park in a parking space and the goods received are not consumed until the vehicle vacates the lane.
2. 2
   Of a feature of such an establishment (especially a window), adapted to provide such service.

Noun

1. 1
   An establishment, especially a restaurant, providing drive-through service.
2. 2
   The window of such an establishment adapted for such purpose.