Dewey decimal system

World English Dictionary
Dewey Decimal System (ˈdjuːɪ)
Also called: decimal classification, DDS a frequently used system of library book classification and arrangement with ten main subject classes
[C19: named after Melvil Dewey (1851--1931), US educator who invented the system]

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Main Entry:  Dewey Decimal System
Part of Speech:  n
Definition:  a system of classifying library materials with numerals and decimals
Etymology:  for Melvil Dewey, US librarian's 21st Century Lexicon
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Word Origin & History

Dewey Decimal system
proposed 1876 by Melvil Dewey (1851-1931) while acting librarian of Amherst College. He also crusaded for simplified spelling and the metric system.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Cultural Dictionary

Dewey decimal system definition

A system used in libraries for the classification of books and other publications. It uses the numbers 000 to 999 to cover the general fields of knowledge and subdivides each field by the use of decimals and letters. Named after its inventor, Melvil Dewey.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
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