n.
Pronunciation: ' o ̇ r-g ə -n ə m
Function: noun
Etymology: Medieval Latin, from Latin, organ
Date: 1782
1 : early polyphony of the late Middle Ages that consists of one or more voice parts accompanying the cantus firmus often in parallel motion at a fourth, fifth, or octave above or below also : a composition in this style
2 : ORGANON