pitahaya pi·ta·haya uncommon noun 1. cactus of the southwestern United States and northern Mexico having edible juicy fruit Synonymspitahaya cactusAcanthocereus tetragonusAcanthocereus pentagonus 2. highly colored edible fruit of pitahaya cactus having bright red juice; often as large as a peach Related words Word family pitahaya cactus Broader terms edible fruitcactus Parts pitahaya cactus WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
