• synonyms


See more synonyms for organa on Thesaurus.com
  1. a plural of organon.
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  1. a plural of organum.
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noun, plural or·ga·na [awr-guh-nuh] /ˈɔr gə nə/, or·ga·nons.
  1. an instrument of thought or knowledge.
  2. Philosophy. a system of rules or principles of demonstration or investigation.
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Origin of organon

1580–90; < Greek órganon; see organ


[awr-guh-nuh m]
noun, plural or·ga·na [awr-guh-nuh] /ˈɔr gə nə/, or·ga·nums.
  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.
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Origin of organum

From Latin, dating back to 1605–15; see origin at organ
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for organa

Historical Examples

  • We had passed the night at the hotel of the Libertad at Organa, where we both slept well enough.

    Tomaso's Fortune and Other Stories

    Henry Seton Merriman

  • Again, I find exploited to the medical profession, through its own organa, a "sure cure for dropsy."

    The Great American Fraud

    Samuel Hopkins Adams

  • Vasa sunt, says Augustine of human troublers, alius utitur; organa sunt, alius tangit.

British Dictionary definitions for organa


  1. a plural of organon, organum
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noun plural -na (-nə) or -nums
  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
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Word Origin

C17: via Latin from Greek; see organ



noun plural organa (ˈɔːɡənə), -nons, -na or -nums Epistemology
  1. a system of logical or scientific rules, esp that of Aristotle
  2. archaic a sense organ, regarded as an instrument for acquiring knowledge
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Word Origin

C16: from Greek: implement; see organ
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

organa in Medicine


n. pl. or•ga•nons
  1. An organ.
  2. A set of principles for use in scientific investigation.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.