Hydrocorallia

1 definition found

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

  Hydrocorallia \Hy`dro*co*ral"li*a\, n. pl. [NL. See {Hydra}, and
     {Coral}.] (Zool.)
     A division of Hydroidea, including those genera that secrete
     a stony coral, as Millepora and Stylaster. Two forms of
     zooids in life project from small pores in the coral and
     resemble those of other hydroids. See {Millepora}.


     [1913 Webster]