Organum
/ˈɔɹ.ɡə.nəm/
"Organum" in a Sentence (2 examples)
He [Francis Bacon] has given us an organum of a different origin and construction from that of Aristotle[…]
Another important circumstance respecting our transcendental esthetics is, that it does not insinuate itself merely as a plausible hypothesis, but is as certain and indubitable as we can require any theory to be in order to serve as an organum.