ostracoidea
Os`tra*coi"de*a, n. pl. Etym: [NL., fr. Gr. -oid.] (Zoöl.) Defn: An order of Entomostraca possessing hard bivalve shells. They are of small size, and swim freely about. [Written also Ostracoda.]
Os`tra*coi"de*a, n. pl. Etym: [NL., fr. Gr. -oid.] (Zoöl.) Defn: An order of Entomostraca possessing hard bivalve shells. They are of small size, and swim freely about. [Written also Ostracoda.]