In architecture, describing a roof or vault with two slopes meeting at an angle; arch-shaped in two directions.
From bi- (two) + pitch (slope). Emerged in 19th-century British architectural terminology to describe roof designs.
A bicched roof was the medieval builder's clever solution—two triangular slopes meeting in the middle meant water ran off in all directions, keeping everything dry!
Complete word intelligence in one call. Free tier — 50 lookups/day.