Quadrivium and Tetrad

Quadrivium noun - (Middle Ages) a higher division of the curriculum in a medieval university involving arithmetic and music and geometry and astronomy.

Tetrad and quadrivium are semantically related in four of something topic. In some cases you can use "Tetrad" instead a noun "Quadrivium".

Tetrad noun - The cardinal number that is the sum of three and one.

Quadrivium and tetrad are semantically related in four of something topic. You can use "Quadrivium" instead a noun "Tetrad".