What is "branchiopod"

Branchiopod \Bran"chi*o*pod\, n. One of the Branchiopoda. [1913 Webster] ||

n. Any of the very many aquatic crustaceans of the class ''Branchiopoda'', such as the fairy shrimps and water fleas

adj. of or relating to or characteristic of the subclass Branchiopoda [syn: branchiopodan, branchiopodous]

n. aquatic crustaceans typically having a carapace and many pairs of leaflike appendages used for swimming as well as respiration and feeding [syn: branchiopod crustacean, branchiopodan]