Pitching

Pitch·ing

Pitching

n.
  1. The act of throwing or casting; a cast; a pitch; as, wild pitching in baseball.
  2. The rough paving of a street to a grade with blocks of stone.
  3. A facing of stone laid upon a bank to prevent wear by tides or currents. (Hydraul. Eng.)

Phrases & Compounds
Pitching piece
the horizontal timber supporting the floor of a platform of a stairway, and against which the stringpieces of the sloping parts are supported.