Semeostoma

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Semaeostomata \Se*mae`o*stom"a*ta\, n. pl. [NL., fr. Gr. ???? a
     military standard + ???, ???, mouth.] (Zool.)
     A division of Discophora having large free mouth lobes. It
     includes {Aurelia}, and {Pelagia}. Called also {Semeostoma}.
     See Illustr. under {Discophora}, and {Medusa}.
     [1913 Webster] Semantic