abat jour
Isaac Kremer/ November 23, 2025/ / 0 comments
A roof or wall opening through which daylight is cast downward; types include: 1) A sloped sill or lintel in a thick wall; 2) a skylight; 3) a window covering that slopes out and upward; used to present prisoners from seeing below; 4) any window shade. (Bucher, 1996)