Entry 2 senses · 2 variants Webster, 1913 Quadrivial · Quad·riv·i·al · IPA /kwɒdˈɹɪvi.əl/ a. n. 01 a. Having four ways meeting in a point. 1. Having four ways meeting in a point. 02 n. One of the four “liberal arts” making up the quadrivium. 1. One of the four “liberal arts” making up the quadrivium.