In geometry, the positive and negative Voronoi poles of a cell in a Voronoi diagram are certain vertices of the diagram. Wikipedia

geometrical term Wikidata

The vertices in a Voronoi diagram that are farthest from the point defining a cell. In particular, a positive pole is farthest from the defining point, and the negative pole is farthest from the defining point on the other side of the cell from the positive pole, where "other side" refers to vertices for which the angle formed by a vector from the defining point to the vertex with the vector from the defining point to the positive pole is greater than π/2. Wiktionary