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organum

American  
[awr-guh-nuhm] / ˈɔr gə nəm /

noun

plural

organa, organums
  1. an organon.

  2. Music.

    1. the doubling, or simultaneous singing, of a melody at an interval of either a fourth, a fifth, or an octave.

    2. the second part in such singing.


organum British  
/ ˈɔːɡənəm /

noun

  1. a form of polyphonic music originating in the ninth century, consisting of a plainsong melody with parts added at the fourth and fifth

  2. a variant of organon

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of organum

From Latin, dating back to 1605–15; organ

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Brasser's son, Jim, added bass harmonies to the family tunes and so the distinctive Copper Family style began to emerge – carefully arranged and pitched with a tuning fork, reminiscent of a medieval organum.

From The Guardian • Aug. 5, 2011

And in an epilogue, he imagines where man stands in the novum organum: a puzzled inflection of star stuff, a mote of mind that glitters for a moment on the grand galactic stream.

From Time Magazine Archive

The oldest surviving manuscript of two-voice parallel organum in the world can be found in the Bodleian Library, Oxford, as part of a book called the Winchester Troper.

From "The Story of Music" by Howard Goodall

As time went on, more adventurous musicians, such as the ninth-century Byzantine composer Kassia of Constantinople, began mixing the parallel organum style with the drone style.

From "The Story of Music" by Howard Goodall

If we imagine parallel organum as a train track winding across the landscape, the drone style looked more like a graph in which one line moves and the other stays constant.

From "The Story of Music" by Howard Goodall