Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by origin]
6. biological material
7. animal material
8. [animal material by form or function]
9. [animal material by excretions, secretions, and fluids]
10. excrement
11. feces
12. dung

Anotations

Scope note:

A substance that is found on some coasts or islands frequented by sea fowl, composed chiefly of their partially decomposed excrement, rich in phosphate and nitrogenous matter, used extensively as fertilizer. Also refers to excrement of bats.