750 ILCS 30/3-3
"Parent" means the father or mother of a lawful child of the parties or a child born out of wedlock, and includes any adoptive parent. It does not include a parent whose rights in respect to the minor have been terminated in any manner provided by law.
(from Ch. 40, par. 2203-3)
(Source: P.A. 94-229, eff. 1-1-06.)