any of various classes (esp. Ostracoda) of small, freshwater or marine crustaceans, having a bivalve carapace that covers the entire body
Origin of ostracod; from Modern Latin Ostracoda ; from Classical Greek ostrakon: see ostracize
Any of numerous small chiefly aquatic crustaceans of the class Ostracoda, having a bivalve carapace and including many extinct species that are commonly found as fossils.
Origin of ostracodNew Latin Ostrac&omacron;da, subclass name, from Greek ostrak&omacron;d&emacron;s, testaceous, from ostrakon, shell; see ost- in Indo-European roots.