louver
- n one of a set of parallel slats in a door or window to admit air and reject rain
- The others elected Novice Niemeyer as their leader, and their building, faced with blue, louver-like sun-breakers, became a famed architectural milestone.
- Walk along the coral sand-colored central corridor that links the center's 10 striking shield-like huts, and computer-operated louver windows open and close according to the air .