Recycling is the process of separating, collecting, processing, marketing, and reusing materials that would have otherwise been thrown away. When a product has been recycled and reused as a new product, the usage loop has been closed. For example, glass is 100% recyclable and can be used over and over again without any loss of quality. (Source: livinggreen.ifas.ufl.edu)

Additional Resources
http://livinggreen.ifas.ufl.edu/waste/recycling.html