Hierarchy classification:

1. top of the aat hierarchies
2. Physical Attributes Facet
3. Attributes and Properties (hierarchy name)
4. [attributes and properties by specific type]
5. form attributes
6. shape (form attribute)
7. curved

Anotations

Scope note:

Of a plane figure or a solid, a set of points containing all points in a line joining any two constituent points, for example, the rounded outward exterior curve of a circle or sphere. In a convex polygon, every internal angle is less than or equal to 180 degrees.