call number: Meaning and Definition of

call' num"ber

Pronunciation: [key]
? Library Science. Library Science.
  1. a number, letter, symbol, or combination of these, indicating the specific location of a work in a library, esp. the combination of the classification symbol and the designation for the author.
Random House Unabridged Dictionary, Copyright 1997, by Random House, Inc., on Infoplease.