In Christian theology, traducianism is a doctrine about the origin of the soul (or synonymously, "spirit"), in one of the biblical uses of word to mean the immaterial aspect of human beings (Genesis 35:18, Matthew 10:28). Traducianism means that this immaterial aspect is transmitted through natural generation along with the body, the material aspect of human beings. That is, an individual's soul is derived from the souls of the individual's parents. This implies that only the soul of Adam was created directly by God (with Eve's substance, material and immaterial, being taken from out of Adam), in contrast with creationism (not to be confused with creationism as a belief about the origin of the material universe), which holds that all souls are created directly by God (with Eve's substance, material and immaterial, being taken from out of Adam).
Read more about Traducianism: History of The Doctrine, Supporters, Opposition