dreissena polymorpha

2 definitions found

dreissena polymorpha - Collaborative International Dictionary of English v.0.48 :

  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]

dreissena polymorpha - WordNet (r) 2.1 (2005) :

  Dreissena polymorpha
      n 1: inch long mollusk imported accidentally from Europe; clogs
           utility inlet pipes and feeds on edible freshwater mussels
           [syn: zebra mussel, Dreissena polymorpha]