ring binder

noun

1. a loose-leaf binder in which the sheets are held in by two or more rings that can be made to snap open.

ring binder

noun

1. a loose-leaf binder fitted with metal rings that can be opened to allow perforated paper to be inserted

Word History and Origins

Origin of ring binder¹

First recorded in 1925–30

Example Sentences

In the memorial sits a three-ring-binder which contains the bios of the women who have been killed in Iraq and Afghanistan.

From The Daily Beast

The items comprise the New Zealand Atlas and a chart; the briefing documents; and the ring-binder notebook.

From Project Gutenberg

However, the ring-binder notebook itself, which was produced at the hearing, was entirely undamaged.

From Project Gutenberg