Ostracod

2 definitions found

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

  ostracod \ostracod\ n.
     A member of the {Ostracoda}, an order of tiny marine and
     freshwater crustaceans with a shrimplike body enclosed in a
     bivalve shell.
  
     Syn: seed shrimp, mussel shrimp.


          [WordNet 1.5]

From WordNet (r) 2.0 [wn]:

  ostracod
       n : tiny marine and freshwater crustaceans with a shrimp-like
           body enclosed in a bivalve shell [syn: {seed shrimp}, {mussel
           shrimp}]