What does "pitching" mean?

Pitching: The rough paving of a street to a grade with blocks of stone. Mayhew.

Additional senses

  1. 2.(Hydraul. Eng.) A facing of stone laid upon a bank to prevent wear by tides or currents. Pitching piece (Carp.), the horizontal timber supporting the floor of a platform of a stairway, and against which the stringpieces of the sloping parts are supported.

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