What is "saccisica"

The Saccisica, sometimes also called the Piovese, is a historic area consisting of the comuni of Arzergrande, Bovolenta, Brugine, Codevigo, Correzzola, Legnaro, Piove di Sacco, Polverara, Pontelongo and Sant'Angelo di Piove di Sacco. It has an area of and a population of 54,000. It lies in the south-eastern part of the province of Padova. The Fiumicello, the Schilla, the Bacchiglione, the Paltana, the Barbegara, the Brenta and the Taglio Nuovissimo flow through it. Formerly an agricultural area, both its economy and its geography have been altered by the growth of commercial and industrial activity in recent decades.