Dew‧ey dec‧i‧mal sys‧tem, the /ˌdjuːi ˈdesəməl ˌsɪstəm $ ˌduːi-/ (also the ˌDewey ˌDecimal Classifiˈcation)
a system used by libraries for putting books into groups according to their subject. General subjects for example, English literature) are given a number, and then particular parts of this subject (for example, Jane Austen's novels) are each given a more specific number using decimal numbers. The system was invented by Melvil Dewey (1851–1931), a US librarian.

[TahlilGaran] Dictionary of Contemporary English ▲