Definition of "quadrivial"

quadrivial

/kwɒdˈɹɪvi.əl/

noun
plural quadrivials
1. Any of the four "liberal arts" making up the quadrivium.
  Quotations
  Tryuyals, & quatryuyals, ſo ſore now they appayreThat Parrot the Popagay, hath pytye to beholdeHow the reſt of good lernyng, is roufled vp & trold
  c. 1521, John Skelton, Speke Parott
  St. Edmund was bred in this University in the Trivials and Quadrivials till he was Professor of Arts
  1691, [Anthony Wood], Athenæ Oxonienses. An Exact History of All the Writers and Bishops who have had Their Education in the Most Ancient and Famous University of Oxford from the Fifteenth Year of King Henry the Seventh, Dom. 1500, to the End of the Year 1690. […], volumes (please specify |volume=I or II), London: […] Tho[mas] Bennet […]
adjective
not comparable
1. Having four ways meeting in a point.
  Quotations
  quadrivial streets
  1612, Ben Jonson, Epigrams
2. Relating to the quadrivium.
  Quotations
  […] but he took the greatest interest in the Quadrivial Curriculum, that is, mathematical science, on account of its intrinsic charms and the rigour of its demonstration.
  1893, Wilfrid Wallace, Life of St. Edmund of Canterbury: From Original Sources, page 85