noun, plural or·ga·na [awr-guh-nuh] /ˈɔr gə nə/, or·ga·nons.
- an instrument of thought or knowledge.
- Philosophy. a system of rules or principles of demonstration or investigation.
noun plural organa (ˈɔːɡənə), -nons, -na or -nums Epistemology
- a system of logical or scientific rules, esp that of Aristotle
- archaic a sense organ, regarded as an instrument for acquiring knowledge
n. pl. or•ga•nons
- An organ.
- A set of principles for use in scientific investigation.