any of a class (Scyphozoa) of sea cnidarians, consisting of jellyfishes lacking a velum
Origin of scyphozoanfrom Modern Latin Scyphozoa from Classical Greek skyphos, a cup + z?on, an animal: see bio-
Any of various marine cnidarians of the class Scyphozoa, which includes most of the jellyfishes, characterized by the absence of a polyp stage or by a polyp that is extremely small.
Origin of scyphozoanFrom New Latin Scyphozōa class name Greek skuphos cup New Latin -zōa pl. of -zōon -zoon