branchiopod

from WordNet (r) 3.0 (2006)

branchiopod
    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}]

from The Collaborative International Dictionary of English v.0.48

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