Dewey decimal classification

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Dewey decimal classification

n.
A system used in libraries for organizing nonfiction publications into subject categories corresponding to three-digit numerals, with further specification expressed by numerals following a decimal point.

[After Melvil Dewey.]

Dew′ey dec′imal classifica`tion

Trademark. a system of library classification using three-digit numerals for major divisions and numerals following a decimal point for subdivisions: devised by Melvil Dewey.
Also called Dew′ey dec′imal sys`tem.
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Noun1.Dewey decimal classification - a system used by libraries to classify nonfictional publications into subject categories; the subject is indicated by a three-digit numeral and further specification is given by numerals following a decimal point; publications are shelved by number
classification system - a system for classifying things