Definition:Adjacent


 * Adjacent (Graph Theory): Two vertices are said to be adjacent or neighboring if there exists an edge to which they are both incident.


 * Adjacent (Geometry):
 * The two sides of a polygon that form a particular vertex are adjacent to that vertex.
 * The two vertices of a polygon that terminate a particular side are adjacent to that side.
 * Two sides of a polygon that meet at the same vertex are adjacent to each other.