QUADRIVIAL Quad*riv"i*al, a. Etym: [L. quadrivium a place where four ways meet; quattuor four + via way.]
Defn: Having four ways meeting in a point. B. Jonson.
QUADRIVIAL
Quad*riv"i*al, n.
Defn: One of the four "liberal arts" making up the quadrivium.
QUADRIVIUM
Quad*riv"i*um, n. Etym: [L.]
Defn: The four "liberal arts," arithmetic, music, geometry, and astronomy; — so called by the schoolmen. See Trivium.
QUADROON Quad*roon", n. Etym: [F. quarteron, or Sp. cuarteron. See Quarter a fourth part, and cf. Quarteron.]
Defn: The offspring of a mulatto and a white person; a person quarter-blooded. [Written also quarteron, quarteroon, and quateron.]
QUADROXIDE
Quad*rox"ide, n. Etym: [Quadri- + oxide.] (Chem.)
Defn: A tetroxide. [R.]