Definition of "ring-binder" []

• Holds loose papers or magazines (noun)

WordNet. Princeton University. 2010.

• "Else, this is a must in such report writing: List different data on separate sheets of paper in a ring-binder - to arrange or re-arrange easily and logically as the data for the report you are writing accumulates."
• "What about books in ring-binder format as a compromise? osnacantab (07: 05: 58):"
• "… Though at first it may be hard to distinguish her from the others in her pride, if you look closer you can spot the leanest and hungriest-looking of the group, generally also clutching a fat ring-binder and deliberately displaying her left hand as a signal to the other Brides that she, too, is the proud owner of a one-carat diamond."