Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by form]
6. [materials by physical form]
7. tile (material)
8. [tile by function]
9. roofing tile
10. [roofing tile by form]

Narrower term/s

• gōutóu

Anotations

Scope note:

A type of ceramic roofing tile with a semi-circular (or greater) cross section. Usually used as a covering tile to prevent water from seeping between two rows of concave/gutter tiles (banwa 瓪瓦). Also written 㼧 (tong (lit. convex tile)).