Lin′er.
1. (Marble-working.) A long slab of stone to which pieces of marble are secured in order to be ground or polished. The pieces of marble — for a tessellated pavement, for instance — are placed face downward on a flat stone; plaster of paris is poured on their upper surfaces, and the liner is laid upon them so as to be cemented to each, though they may vary in thickness. They are then ready for grinding by being drawn back and forth over a large slab of marble, sand and water being supplied between the surfaces, which act by mutual attrition.
2. (Machinery.) A thin piece placed between parts to adjust them. A shim.
3. (Nautical.) a. A line-of-battle ship. One large enough to occupy a position in the main line. b. One of a regular line of vessels or packets sailing or steaming between ports.

