BranchiopodaPronunciation: /ˌbraŋkɪəˈpəʊdə/Definition of Branchiopoda noun Zoology a class of small aquatic crustaceans that includes water fleas and fairy shrimps, which are distinguished by having gills upon the feet. Origin:modern Latin (plural), from Greek brankhia 'gills' + pous, pod- 'foot'Branchiopoda in other Oxford dictionaries Definition of Branchiopoda in the US English dictionary