from The American Heritage® Dictionary of the English Language, 4th Edition
- A trademark used for a desktop rotary file of removable cards, usually used for names, addresses, and telephone numbers.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. A type of rotating file index used for storing addresses, especially in a work context.
from the GNU version of the Collaborative International Dictionary of English
- adj. A trade name for a type of card file. Also used informally and improperly as a noun meaning Rolodex(R) card file.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. (trademark) a desktop rotary card index with removable cards; usually used for names, addresses, and telephone numbers
Blend of rolling and index (Wiktionary)