Tasmanian devil tas·ma·nian·devil uncommon noun 1. small ferocious carnivorous marsupial having a mostly black coat and long tail SynonymsTasmanian devilursine dasyureSarcophilus hariisi Related words Broader terms dasyurid marsupial Parts Sarcophilus WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.