Polinigons
Polinigons is a term that can refer to several related concepts. In a general sense, it is sometimes used as a non-standard or informal way to describe polygons, which are closed geometric figures made up of straight line segments. These line segments are called edges, and the points where the edges meet are called vertices. Triangles, squares, and pentagons are all examples of polygons.
More specifically, "Polinigons" might be an intended misspelling or a unique coinage within a particular context,