adj.
1.in the shape of a coil spiral n.
1.a plane curve traced by a point circling about the center but at ever-greater distances from it
2.a curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle
3.ornament consisting of a curve on a plane that winds around a center with an increasing distance from the center
4.a structure consisting of something wound in a continuous series of loops
5.flying downward in a helical path with a large radius spiral v.
1.to wind or move in a spiral course
2.form a spiral
3.move in a spiral or zigzag course