Comminution :: Comminution (n.) The act of reducing to a fine powder or to small particles; pulverization; the state of being comminuted.
Comminution :: Comminution (n.) Fracture (of a bone) into a number of pieces.
Comminution :: Comminution (n.) Gradual diminution by the removal of small particles at a time; a lessening; a wearing away.