phyl·lop·o·da \fə̇ˈläpədə\noun plural Usage: capitalized Etymology: New Latin, from phyll- + -poda in some especially former classifications: a group comprising entomostracan crustaceans with leaflike swimming appendages that serve as gills, mandibles without palpi, and reduced maxillae: as a.: branchiopoda 1 b.: an order or suborder coextensive with the combined orders Anostraca, Notostraca, and Conchostraca