WordNet (r) 3.0 (2006):
branchiopodan adj 1: of or relating to or characteristic of the subclass Branchiopoda [syn: branchiopod, branchiopodan, branchiopodous] n 1: aquatic crustaceans typically having a carapace and many pairs of leaflike appendages used for swimming as well as respiration and feeding [syn: branchiopod crustacean, branchiopod, branchiopodan]