Dictionary.com
definitions
  • synonyms

Library of Congress classification

See more synonyms on Thesaurus.com
noun Library Science.
  1. a system for classifying books and other materials, using for its notation both letters and numerals to allow for expansion: originally developed at the Library of Congress for classifying its books and subsequently adopted by other libraries.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018