Source : WordNet®

branchiopodan
     adj : of or relating to or characteristic of the subclass
           Branchiopoda [syn: {branchiopod}, {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}, {branchiopod}]