decapod Syllabification: (dec·a·pod)Pronunciation: /ˈdekəˌpäd/ ZoologyDefinition of decapod noun a crustacean of the order Decapoda, such as a shrimp, crab, or lobster. adjective relating to or denoting decapods. decapod in other Oxford dictionaries Definition of decapod in the British & World English dictionary