An example of splay is to spread apart the fingers on a hand.
They are relatively large dogs, with broad splay feet, and silky oily coats.
The term is sometimes applied to the splaying of the edges of a window on the outside, but the wide expansion made inside in order to admit more light is known as a splay.
South wall: three windows, the small ground level window having an asymmetrical splay away from the altar.
The conventional dome design has been given a wider splay making it extremely sturdy in high winds.