quinquacentagonal
Quinquacentagonal refers to something having 500 angles or sides. The term is derived from Latin roots: "quinquaginta" meaning fifty and "centum" meaning hundred, combined to form five hundred, and "angulus" meaning angle. Therefore, a quinquacentagonal shape is a polygon with 500 vertices and 500 edges.
In geometry, polygons are classified by the number of their sides. A regular quinquacentagonal polygon would
Due to the very large number of sides, a regular quinquacentagonal polygon would visually approximate a circle.