Definition of Dewey decimal classification noun from the Oxford Advanced American Dictionary

 

Dewey decimal classification

 noun
noun
NAmE//ˌdui ˈdɛsəml klæsəfəˌkeɪʃn//
 
(also Dewey system)[singular]
 
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an international system for arranging books in a library
See the Oxford Advanced Learner's Dictionary entry: Dewey decimal classification