Hierarchy classification:

1. top of the aat hierarchies
2. Associated Concepts Facet
3. Associated Concepts (hierarchy name)
4. scientific concepts
5. mathematical concepts
6. geometric concepts
7. geometric figures
8. plane figures

Anotations

Scope note:

Geometric plane figures produced when a cone is cut obliquely by a plane taking a smaller angle with the base than the side of the cone makes with the base; the form is symmetric about its horizontal and vertical axes.