D defs.my
Entry 2 senses Webster, 1913

Polissoir

· Po·lis·soir · IPA
01 n. A polishing or grinding implement or instrument.
  1. 1.
    A polishing or grinding implement or instrument.
  2. 2.
    A tool consisting of a flat wooden block with a long iron handle, used for flattening out split cylinders of blown glass.(Glass Making)