n. A serpent whose bite was said to produce a mortal thirst.n. [capitalized] [NL.] The typical genus of serpents of the family Dipsadidæ. D. dendrophila is East Indian, D. fasciata West African.n. [capitalized] [NL.] A genus of fresh-water bivalves, of the family Unionidæ, or river-mussels.n. [capitalized] [NL.] A genus of butterflies, of the family Lycænidæ.