from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A number used in libraries to classify a book and indicate its location on the shelves.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. An identification number, usually consists of a combination of numbers and characters, used to identify and locate materials within a library.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a mark consisting of characters written on a book; used to indicate shelf location


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