The Collaborative International Dictionary
RolodexR card file
Rolodex \Rol"o*dex\ (r[^o]l"[-o]*d[e^]ks), a. [Trade Mark of Newell Office Products.] A trade name for a type of card file; as, a Rolodex(R) card file. Also used informally and improperly as a noun meaning Rolodex(R) card file.