partridgeberry Syllabification: (par·tridge·ber·ry)Pronunciation: /ˈpärtrijˌberē/Definition of partridgeberry noun (plural partridgeberries) a creeping North American plant of the madder family with red berries that are a favored food of game birds. Mitchella repens, family Rubiaceae the fruit of the partridgeberry plant. partridgeberry in other Oxford dictionaries Definition of partridgeberry in the British & World English dictionary