re·cy·cling 
(rē-sīkə-lĭng, -klĭng)
(rē-sīkə-lĭng, -klĭng)n.
1. The activity or process of extracting and reusing useful substances found in waste.
2. Materials that have been set apart from refuse so that they can be recycled: She set the recycling out by the curb.