# Ternary relation | | In mathematics, a **Ternary relation** or triadic relation is a finitary relation in which the number of places in the relation is three. Ternary relations may also be referred to as 3-adic, 3-ary, 3-dimensional, or 3-place. | |-|-| | | wikipedia:: [Ternary relation](https://en.wikipedia.org/wiki/Ternary_relation) |