branchiopod Syllabification: (bran·chi·o·pod)Pronunciation: /ˈbraNGkēəˌpäd/Definition of branchiopod noun Zoology a small aquatic crustacean of the class Branchiopoda, such as a water flea or fairy shrimp. branchiopod in other Oxford dictionaries Definition of branchiopod in the British & World English dictionary