from The Century Dictionary and Cyclopedia
- n. In machinery: Any material used in a joint to make it steam-tight.
- n. The material used in a stuffing-box to keep steam from leaking through an opening in which a rod slides in and out.
- n. A form of packing for steam-pistons in which the packing-rings in the piston are forced out against the bore of the cylinder by pressure of steam admitted into the grooves behind or inside of the rings. The rings may be made in sections to yield easily to this radial pressure.
Sorry, no etymologies found.