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organa1

[awr-guh-nuh] /ˈɔr gə nə/
noun
1.
a plural of organon.

organa2

[awr-guh-nuh] /ˈɔr gə nə/
noun
1.
a plural of organum.

organon

[awr-guh-non] /ˈɔr gəˌnɒn/
noun, plural organa
[awr-guh-nuh] /ˈɔr gə nə/ (Show IPA),
organons.
1.
an instrument of thought or knowledge.
2.
Philosophy. a system of rules or principles of demonstration or investigation.
Origin
1580-1590
1580-90; < Greek órganon; see organ

organum

[awr-guh-nuh m] /ˈɔr gə nəm/
noun, plural organa
[awr-guh-nuh] /ˈɔr gə nə/ (Show IPA),
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.
Origin
1605-15; < Latin; see organ
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for organa

organa

/ˈɔːɡənə/
noun
1.
a plural of organon, organum

organon

/ˈɔːɡəˌnɒn/
noun (Epistemology) (pl) organa (ˈɔːɡənə), -nons, -na, -nums
1.
a system of logical or scientific rules, esp that of Aristotle
2.
(archaic) a sense organ, regarded as an instrument for acquiring knowledge
Word Origin
C16: from Greek: implement; see organ

organum

/ˈɔːɡənəm/
noun (pl) -na (-nə), -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
Word Origin
C17: via Latin from Greek; 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
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organa in Medicine

organon or·ga·non (ôr'gə-nŏn') or or·ga·num (-nəm)
n. pl. or·ga·nons or or·ga·nums or or·ga·na (-nə)

  1. An organ.

  2. A set of principles for use in scientific investigation.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Word Value for organa

7
9
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