hy·dro·zo·an /ˌhaɪdrəˈzoən/ (a.)水息蟲類的水息蟲類的蟲
hy·dro·zo·an /-ˈzoən/ 名詞 水螅
hydrozoan n : colonial coelenterates having the polyp phase dominant [syn: hydroid] [also: hydrozoa (pl)]