The four "liberal arts," arithmetic, music, geometry, and astronomy; -- so called by the schoolmen. See Trivium.

Arithmetic, geometry, astronomy and music; the scientific subjects in the seven liberal arts; the three literary subjects were called the Trivium. (Lynch, Joseph H. The Medieval Church: A Brief History, 364)

A name given by schoolmen during the Middle Ages to the four liberal arts; arithmetic, astrology, geometry and music.