Hierarchy classification:

1. top of the aat hierarchies
2. Materials Facet
3. Materials (hierarchy name)
4. materials (substances)
5. [materials by composition]
6. organic material
7. oil (organic material)
8. [oil by composition or origin]
9. vegetable oil
10. essential oil

Anotations

Scope note:

An essential oil derived from plants in the genus Thymus, used variously as a component of medicine, flavoring, perfumes and cosmetics, and in a conservation context it has been used to control fungi, bacteria, and other biodeteriogens on paper objects and in collection care.