Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Object Genres (hierarchy name)
4. object genres (object classifications)
5. [object genres by form]

Anotations

Scope note:

Objects in the form of a long, thin material wound as a series of concentric circles or rings, having symmetrical curves or windings. Common examples are rope, pipes, and curls in certain hair styles. For curves that wind around a point while moving ever farther from the point, use "spirals (geometric figures)."