Notobranchiata

1 definition found

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

  Notobranchiata \No`to*bran`chi*a*ta\, n. pl. [NL. See {Notum},
     and {Branchia}.] (Zool.)
     (a) A division of nudibranchiate mollusks having gills upon
         the back.
     (b) The Dorsibranchiata.
         [1913 Webster]