Dreissena

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Dreissena \Dreis"se*na\, prop. n. [NL. Named after Dreyssen, a
     Belgian physician.] (Zool.)
     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]



From WordNet (r) 2.0 [wn]:

  Dreissena
       n : zebra mussels [syn: {genus Dreissena}]