Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Weapons and Ammunition (hierarchy name)
5. weapons
6. armaments
7. projectile weapons
8. [projectile weapons with nonexplosive propellant]
9. [projectile launchers with nonexplosive propellant]

Anotations

Scope note:

Historical military engines of various designs for discharging darts, stones, or other missiles. A typical design consists of a long upright arm with a spoon-shaped or slinglike holder to carry the projectile at the upper end.