Arcuation is the action or process of curving or bending into an arc shape. There are various synonyms for this word, such as arching, curving, bending, dishing, doming, vaulting, hunching, roundness, curvature, and flexion. The use of these words depends on the context in which they are employed. For example, arching is used when describing the curving shape of an arch, while curving is used when referring to the sinuous shape of a road. Bending is used to refer to the act of changing the shape of something by applying force, while dishing is used when describing the curved shape of a concave surface. Regardless of the specific synonym used, this word denotes a curving, bending, or arching shape.