splay
Plural
splays
1
an angled or sloping surface, typically found on the sides or edges of a window or door opening, creating a wider opening towards the inside of a wall
A splay refers to the angled or slanted surface along the edge of a doorway, window, or other opening. Instead of being straight, the sides of the opening are cut at an angle, widening the space as it moves outward. This design can help to allow more light into a room, improve visibility, or simply add an interesting visual effect. Splays are commonly used in architecture to create a sense of depth or to soften the appearance of corners and edges.