What does parmesan mean?

Parmesan refers to a hard, aged cheese that originates from Italy, specifically the region of Emilia-Romagna. Officially known as Parmigiano-Reggiano, it is made from cow's milk and has a rich, nutty flavor. The term "parmesan" can also refer to similar cheeses produced outside of Italy, though only those made in specific regions of Italy can be labeled as Parmigiano-Reggiano. This cheese is often grated and used as a topping for various dishes, including pasta and salads.