(1) The theory that blood cells have two origins, from the lymphatic system and from the bone marrow.

(2) The view in psychology that the mind and body function separately, without interchange.

(3) The belief in the existence of two entities (as one good and one evil); ditheism; bitheism

Extraphysical dualism is an extraphysicalist philosophical view where physics and extraphysics are separated from each other and both act independently of each other, it also holds that it's impossible to study about extraphysical phenomena such as mind, soul, spirit, consciousness, afterlife, reincarnation, mediumship, astral projection, multiverses, multidimensions, extraphysical mechanics and all other things related to extraphysics by physical and natural means, believing on the need of development of advanced technology, post-physicalist and post-empirical methods to study them and that extraphysical things can barely influence physics and their influence are almost all the time not enough to be detected and when in interaction with matter, the physical part will always be above the extraphysical part when it's observed by physical means as happens with extraphysical superposition.