\Com`mi*nu"tion\, n.
1. The act of reducing to a fine powder or to small
   particles; pulverization; the state of being comminuted.
   --Bentley.
2. (Surg.) Fracture (of a bone) into a number of pieces.
   --Dunglison.
3. Gradual diminution by the removal of small particles at a
   time; a lessening; a wearing away.
         Natural and necessary comminution of our lives.
                                               --Johnson.