Pennatulacea

1 definition found

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

  Pennatulacea \Pen*nat`u*la"ce*a\, n. pl. [NL. See {Pennatula}.]
     (Zool.)
     A division of alcyonoid corals, including the seapens and
     related kinds. They are able to move about by means of the
     hollow muscular peduncle, which also serves to support them
     upright in the mud. See {Pennatula}, and Illust. under


     {Alcyonaria}.
     [1913 Webster]