Found 2 items, similar to Dreissena.
English → English (WordNet) Definition: Dreissena Dreissena n : zebra mussels [syn: genus Dreissena]
English → English (gcide) Definition: Dreissena Dreissena \Dreis"se*na\, prop. n. [NL. Named after Dreyssen, a Belgian physician.] (Zo["o]l.) A genus of bivalve shells of which one species (Dreissena polymorpha ) is often so abundant as to be very troublesome in the fresh waters of Europe. [1913 Webster]