'Rolodex' definitions:

Definition of 'Rolodex'

From: WordNet
noun
(trademark) a desktop rotary card index with removable cards; usually used for names, addresses, and telephone numbers; "a news reporter has to have a good Rolodex"

Definition of 'Rolodex'

From: GCIDE
  • 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. [PJC]