soursop /ˈsaʊəɹˌsɒp/ noun2 •The tart, spiny, yellow-green fruit of this tree.For a plant whose preferred growing region is the temperate zone of North America, the pawpaw is an uncannily exotic-tasting delicacy, a far-flung cousin of the tropical soursop, or guanábana. — 2023 •A small tropical evergreen tree, Annona muricata. formssoursops