= grindstone, n. 2.

A disc of stone of considerable thickness, revolving on an axle, and used for grinding, sharpening, or polishing. Also transferred and figurative.

= glazer, n. 3. Obsolete.

Various mechanical contrivances. = grinding-wheel n. at grinding, n. compounds 3.

(a) a wheel adapted for grinding or polishing; (b) a building fitted up with water or steam power for grinding cutlery or tools.

a wooden wheel used by cutlers for polishing knives, etc.