Dictionary

organum

noun or·ga·num \ˈr-gə-nəm\

Definition of ORGANUM

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

Origin of ORGANUM

Medieval Latin, from Latin, organ
First Known Use: 1782

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