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English definition of “Dewey decimal system”

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Dewey decimal system

noun [U] uk   /ˌdjuː.iˈdes.ɪ.məlˌsɪs.təm/ us    /ˌduː.i-/
a system of organizing books and magazines, etc. in libraries, by which a book is given three numbers for each main subject and another number or numbers, after a decimal point (= a small solid circle) for its place within that subject
(Definition of Dewey decimal system from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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