Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Containers (hierarchy name)
5. containers (receptacles)
6. [containers by form]
7. vessels (containers)
8. bottles
9. [bottles by form]
10. flasks (bottles)

Anotations

Scope note:

Double-walled vessels designed to regulate the temperature of liquids stored within. Originally invented by Sir James Dewar. Use 'Thermoses (TM)' for the brand name examples of these. With a lowercase initial 'thermoses' is frequently applied loosely to 'vacuum flasks' in general.