ˈring ˌbinder noun [countableC] British EnglishBrE
a file for holding papers, in which metal rings go through the edges of the pages, holding them in place 活页夹,活页簿 →5 see picture at 见图 stationery ring binder• It is presented in an A4 ring binder and each section is well indexed.• At other levels materials will fit into a larger format ring binder, possibly Deskfax.• At the Survival level, packs of loose-leaf materials will be available to fit into a Filofax/Organiser ring binder.