Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Components (hierarchy name)
4. components (objects parts)
5. [components by general context]

Narrower term/s

• tuyeres

Anotations

Scope note:

Projecting aperatures used to direct the flow of fluids or air or to change the velocity of the flow, especially such aperatures that taper or have a constriction as on the end of a hose or bellows.