simplex

Consisting of or marked by only one part or element.

Of or relating to a telecommunications system in which only one message can be sent in either direction at one time.

A Euclidean geometric spatial element having the minimum number of boundary points, such as a line segment in one-dimensional space, a triangle in two-dimensional space, or a tetrahedron in three-dimensional space.

A word that has no affixes and is not part of a compound; a simple word.

Simple; single: applied to telegraphy.

Single, simple; not complex.

unidirectional

An analogue in any dimension of the triangle or tetrahedron: the convex hull of n+1 points in n-dimensional space.

A simple word, one without affixes.

having only one part or element