Nomenclature: A system of names used in a particular discipline, as in medicine and surgery, anatomy and biochemistry, etc. A standard system of nomenclature presupposes the existence of an organized classification of the entities within that field. From the Latin nomenclatura, a listing of names, from nomen, name, + calo, to proclaim.
Yangire (also referred to Cute and Psycho) is a Japanese term used to refer to normal people who suddenly become violent, sometimes due to a past trauma. Yangires are very similar to Yanderes, both are people who suffer from personality disorder and can easily become violent and extremely dangerous.
Yin Yang is perhaps the most known and documented concept used within Taoism. A starting definition: Yin / Yang : Two halves that together complete wholeness. Yin and yang are also the starting point for change. When something is whole, by definition it is unchanging and complete. So when you split something into two halves â yin / yang, it upsets the equilibrium of wholeness.