Ostracoidea
Pronunciation : Os`tra*coi"de*a
Part of Speech : n.
Etymology : [NL., fr. Gr. -oid.] (Zo?l.)
Definition : Defn: An order of Entomostraca possessing hard bivalve shells. They are of small size, and swim freely about. [Written also Ostracoda.]
pl.
Source : Webster's Unabridged Dictionary, 1913