Definition: In computer science, the term "interjacency" is used to describe the relationship between two or more nodes in a graph. It refers to the presence of an edge between these nodes, indicating that one node is connected to another. This type of adjacency can be either directed or undirected based on the direction in which edges are traversed within the graph. For example, consider the following graph: ``` A / \ B C \ / \ D In this graph