| Noun | 1. | Nymphalis - type genus of the Nymphalidae: mourning cloak butterfliesarthropod genus - a genus of arthropods family Nymphalidae, Nymphalidae - large beautifully colored butterflies Camberwell beauty, mourning cloak, mourning cloak butterfly, Nymphalis antiopa - of temperate regions; having dark purple wings with yellow borders tortoiseshell butterfly, tortoiseshell - brilliantly colored; larvae feed on nettles |