structure,
construction a thing constructed; a complex entity constructed of many parts; "the structure consisted of a series of arches"; "she wore her hair in an amazing construction of whirls and ribbons"
spiral -
a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle
curved shape,
curve a pitch of a baseball that is thrown with spin so that its path curves as it approaches the batter
Verb
spiral -
form a spiral; "The path spirals up the mountain"
curve,
wind,
twist coil the spring of (some mechanical device) by turning a stem; "wind your watch"
spiral -
to wind or move in a spiral course; "the muscles and nerves of his fine drawn body were coiling for action"; "black smoke coiling up into the sky"; "the young people gyrated on the dance floor"