Before revision: In geometry, a basket-handle arch is a plane curve drawn by an odd number of circular arcs (for an arch with the profile of its intrados (inner surface) formed by a sequence of circular arcs with neighboring ones being tangent to each other (smoothly transitioning).
After revision: A basket-handle arch is an arch with the profile of its intrados (inner surface) formed by a sequence of circular arcs with neighboring ones being tangent to each other (smoothly transitioning).