loose-leaf

from The Collaborative International Dictionary of English v.0.48

looseleaf \loose"leaf`\, loose-leaf
\loose"-leaf`\(l[=oo]s"l[=e]f`), adj.
   having rings that open and close permitting insertion and
   removal of pages; -- of notebooks and binders and the paper
   used in them; as, a looseleaf notebook; looseleaf paper.

   Syn: loose-leaf.
        [WordNet 1.5] looseleaf binder