Packing

1. The act or process of one who packs.
2. A trick; collusion.
3. Same as Filling.
4. The substance in a stuffing box, through which a piston rod slides.
5. A thin layer, or sheet, of yielding or elastic material inserted between the surfaces of a flange joint.
6. A substance or piece used to make a joint impervious
7. Any material used to pack, fill up, or make close.
8. A yielding ring, as of metal, which surrounds a piston and maintains a tight fit, as inside a cylinder, etc.
9. of Pack