Look up adjacency or adjacent in Wiktionary, the free dictionary.

Adjacent or adjacency may refer to:

• Adjacent (graph theory) in a graph, two vertices that are both endpoints of the same edge, or two distinct edges that share an end vertex
• Adjacent (music), a conjunct step to a note which is next in the scale

• Adjacent angles, two angles that share a common ray
• Adjacent channel in broadcasting, a channel that is next to another channel
• Adjacency matrix, a matrix that represents a graph
• Adjacency pairs in pragmatics, paired utterances such as a question and answer
• Adjacent side (polygon), a side that shares an angle with another given side
• Adjacent side (right triangle), the side (or cathetus) of a right triangle that touches a given non-right angle

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