As used in this act:
"Child" means any individual who has not yet passed his eighteenth birthday and includes one conceived but not yet born.
"Department" means the Department of Public Welfare of this Commonwealth.
"Person" means an individual, agency, association, corporation or institution.
"Placement" means either effecting admission of a child to an institution, except an educational institution, or effecting his reception in a family home, whether or not a charge is made for his care by the institution or family home.
62 P.S. § 746