quadrivial

Having four ways meeting in a point; leading in four directions.

Belonging to the quadrivium: thus, quadrivial astrology is astrology in the sense in which astrology is a branch of the quadrivium — that is, astronomy.

One of the four arts constituting the quadrivium.

One of the four “liberal arts” making up the quadrivium.

Having four ways meeting in a point.

Any of the four “liberal arts” making up the quadrivium.