noun
decimal classification; Dewey Decimal Classification
Refers to library classification systems that use decimal numbers, especially the Dewey Decimal Classification. Often used in library science contexts.
図書館では十進分類法を使って本を整理している。
The library organizes books using the decimal classification system.
Compound of 十進 (decimal) + 分類 (classification) + 法 (method/system). The term is a direct translation of the English 'decimal classification'.