from The Century Dictionary and Cyclopedia
- n. A machine for producing truly plane surfaces by grinding. The piece is held firmly on a table or carriage moving on true-surface ways, and is passed back and forth under a rapidly revolving emery-wheel or other grinder. The truth of the ways on which the table moves is reproduced on tho ground surface, in spite of varying hardness of the surface ground.
Sorry, no etymologies found.