(n) (trademark) a desktop rotary card index with removable cards; usually used for names, addresses, and telephone numbers, Example:a news reporter has to have a good Rolodex
The Collaborative International Dictionary of English (GCIDE) v.0.53 Collaborative International Dictionary (GCIDE)
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 ]