Home › Words › G › gastrozooidgastrozooidgastrozooid means A feeding polyp in hydrozoan corals and siphonophores.Among words judged in Lexicurio's Arena, gastrozooid ranks #12,782 of 42,747 for Qualifying.EtymologyFrom gastro- + zooid.nounA feeding polyp in hydrozoan corals and siphonophoresDefinitions & examples from Wiktionary (CC BY-SA 3.0).