sweetsop Syllabification: (sweet·sop)Pronunciation: /ˈswētˌsäp/Definition of sweetsop noun 1a round or heart-shaped custard apple that has a green scaly rind and a sweet pulp. Also called sugar apple. 2the tropical American evergreen shrub that yields the sweetsop. Annona squamosa, family Annonaceae sweetsop in other Oxford dictionaries Definition of sweetsop in the British & World English dictionary