Scyphozoa
  缽水母綱; 真水母綱
  Scyph·o·zoa /ˌskɪfəˈzoə/ 名詞 複數
  Scyphozoa
       n : coelenterates in which the polyp stage is absent or at least
           inconspicuous: jellyfishes [syn: class Scyphozoa]
  scyphozoan
       n : any of various usually free-swimming marine coelenterates
           having a gelatinous medusoid stage as the dominant phase
           of its life cycle
       [also: scyphozoa (pl)]