[Dew.ey decimal classification] n [Melvil Dewey] (1924): a system of classifying books and other publications whereby main classes are designated by a three-digit number and subdivisions are shown by numbers after a decimal point--called also Dewey decimal system
DEWEY DECIMAL CLASSIFICATION
Meaning of DEWEY DECIMAL CLASSIFICATION in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012