death angel deat·han·gel uncommon noun 1. extremely poisonous usually white fungus with a prominent cup-shaped base; differs from edible Agaricus only in its white gills Synonymsdeath capdeath cupdeath angeldestroying angelAmanita phalloides Related words Broader terms agaric Parts Amanita WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.