reclamation
n. uncountablen. the process of getting something back or making something useful again. You often hear this when people turn old, dirty land into a park or a place for buildings.
n. the process of claiming something back or reasserting a right to it; specifically, the conversion of waste land or underwater areas into land suitable for habitation or cultivation.
The city started a land reclamation project by the sea.
After the mine closed, the company spent millions on environmental reclamation to restore the local forest.
The reclamation of the marshlands provided the growing city with much-needed space for infrastructure, though it fundamentally altered the local ecosystem's natural drainage patterns.
Often followed by the preposition 'of' to indicate the object being recovered.