Dictionary.net

• An organ or instrument; hence, a method by which philosophical or scientific investigation may be conducted; - a term adopted from the Aristotelian writers by Lord Bacon, as the title (Novum Organon) of part of his treatise on philosophical method.

2010 - New Age Dictionary Database
By Oddity Software

• An organ or instrument; hence, a method by which philosophical or scientific investigation may be conducted; - a term adopted from the Aristotelian writers by Lord Bacon, as the title (Novum Organon) of part of his treatise on philosophical method.

1913 - Webster's Revised Unabridged Dictionary
By Noah Webster.