• synonyms


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.
Show More

Origin of organon

1580–90; < Greek órganon; see organ
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for organon

Historical Examples

  • No man can invent an organon for writing tragedies and epic poems.

    Pioneers of Science

    Oliver Lodge

  • This it was which won recognition for an organon other than the mathematical.


    Mildred Anna Rosalie Tuker

  • He describes special logic as the organon of this or that science.

  • Logic is the doctrine of the organon of science, and when applied is the organon of science.

  • Rhetoric was the organon of Roman education, and declamation was the aim of rhetoric.

British Dictionary definitions for organon



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
Show More

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

organon in Medicine


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