Noun
ensoulment (countable and uncountable, plural ensoulments)
The act or process of ensouling; the act of a developing human being given a soul.
In the 1200s, Thomas Aquinas held that human ensoulment occurred not right at the first instant, but at a time-point removed from the beginning. Source: Internet
The magisterium of the Church has never definitively stated when the ensoulment of the human embryo takes place. Source: Internet