slat window


Also found in: Dictionary, Thesaurus.

louver

Louis XVI style
1. An assembly of sloping, overlapping blades or slats; may be fixed or adjustable; designed to admit air and/or light in varying degrees and to exclude rain and snow; esp. used in doors, windows, and the intake and discharge of mechanical ventilation systems.
2. A dome or turret rising from the roof of the hall of a medieval English residence, originally open at the sides to