(a) General. — When used in this article, or in the administration of this article, terms defined in subsection (b) shall have the meanings ascribed to them by this section, unless a different meaning is clearly required by either the context in which the term is used, or by specific definition.
(b) Terms defined.
(1) Alien. — The term "alien" means a decedent who, at the time of his or her death, was not domiciled in this state or any other state of the United States and was not a citizen of the United States.