As used in this act:

    (a) "Acknowledged parent" means an individual who has established a parent-child relationship under this act.

    (b) "Acknowledgment" means an acknowledgment of parentage executed as provided in this act.

    (c) "Child" means a child conceived and born to a woman who was not married at the time of conception or the date of birth of the child, a child that the circuit court determines was born or conceived during a marriage but is not the issue of that marriage, or a child that is born to an individual who gave birth to a child conceived through assisted reproduction.

    (d) "Court" means the circuit court.

    (e) "State registrar" means that term as defined in section 2805 of the public health code, 1978 PA 368, MCL 333.2805.