n. 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.
n. 奥尔加农(一种复调音乐), 推理法, <<工具论>>
[医] 器官, 器