A more thorough explanation:

Term: Domiciliary
Definition: Domiciliary refers to a person's home or place of residence. It can also refer to the legal authority of a particular place over its residents. For example, a domiciliary jurisdiction has the power to make and enforce laws for the people who live there.
Examples: John moved to New York City and made it his domiciliary. He now pays taxes and follows the laws of New York City. Another example is if someone is injured while serving in the military, they may receive domiciliary care at a VA hospital, which means they are receiving care in a place that is like their home. These examples illustrate how domiciliary can refer to a person's residence or the legal authority of a place over its residents.