custard apple cus·tar·dapple uncommon noun 1. any of several tropical American trees bearing fruit with soft edible pulp Synonymscustard applecustard apple tree 2. the fruit of any of several tropical American trees of the genus Annona having soft edible pulp Synonymscustard apple Related words Word family custard-apple familycustard apple tree Broader terms edible fruitfruit tree Narrower terms cherimoyasoursopbullock's heartsweetsopilamapond applepawpaw Parts custard appleAnnona Part of custard apple WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.