ternary

Composed of three or arranged in threes.

Having the base three.

Involving three variables.

A group of three.

Proceeding by threes; consisting of three: as, a ternary flower (that is, one having three members in each cycle); a ternary chemical substance (that is, one composed of three elements).

The number three; a group of three.

In mathematics, having three variables.

In old chemistry, applied by Dalton to substances consisting of three atoms — either A + 2 B or 2 A + B.

A trinity.