organum noun. ['ɔ:g(ǝ)nǝm] Pl. -na [-nǝ]. E17.
[Latin from Greek ORGANON.]
1. = ORGANON 1. Long rare or obsolete. E17.

2. Medieval Music. A part sung as an accompaniment below or above the melody or plainsong, usu. at an interval of a fourth or fifth; this method of singing in parts. L18.

[TahlilGaran] English Dictionary ▲