Decapoda de·ca·poda uncommon noun 1. lobsters; crayfish; crabs; shrimps; prawns Synonymsorder Decapoda 2. squids and cuttlefishes Synonymsorder Decapoda Related words Broader terms animal order Parts DibranchiataMalacostraca Part of decapodgenus Loligogenus Ommastrephesgenus ArchiteuthisSepiidaeSpirulidaedecapod crustaceanReptantia WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.