data mart in English dictionary data mart Meanings and definitions of "data mart" noun The access layer of a data warehouse environment, used to distribute data to the users. A subset of the contents of a data warehouse that tends to contain data focused at the department level, or on a specific business area. more Grammar and declension of data mart data mart (plural data marts) more Sample sentences with "data mart" Declension Stem Match words all exact any Try again Available translations Arabic Chinese Czech Danish Dutch Finnish French German Italian Japanese Korean Polish Portuguese Russian Spanish Swedish Turkish Authors