Meaning of fauxbourdon

faux•bour•don

Pronunciation: (fō'bur-don" Fr. fō-b&oomacrr-dôn'), [key]
— n.
  1. a 15th-century compositional technique employing three voices, the upper and lower voices progressing an octave or a sixth apart while the middle voice extemporaneously doubles the upper part at a fourth below.
  2. the use of progressions of parallel sixth chords.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.