525 ILCS 30/3.06
"Dedicate" means to set aside land in perpetuity as a nature preserve or as a buffer area as provided in this Act for the benefit of the public, thereby subjecting the land to a negative easement in favor of the public and precluding the owner from asserting any right of ownership inconsistent with this Act or the dedication.
(from Ch. 105, par. 703.06)
(Source: P.A. 82-445.)