adjacency

/əˈdʒeɪsənsi/
noun
  1. The state of being next to or near something; closeness in position.
    • The adjacency of the houses meant the neighbors could hear each other's music.
    • The adjacency of the two chairs made conversation easy.
    • Because of the adjacency of the library and the café, students often study there.
  2. In mathematics and computing, a relationship between two items that are next to each other, such as nodes in a graph or cells in a grid.
    • In graph theory, adjacency is shown by a line connecting two points.
    • The program checks the adjacency of each cell in the spreadsheet.
    • The adjacency matrix lists which vertices are connected in the network.
Antonyms
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