meconidium

1 definition found

meconidium - Collaborative International Dictionary of English v.0.48 :

  Meconidium \Mec`o*nid"i*um\, n. [NL., dim. of Gr. ? a poppy. So
     called in allusion to the shape of the seed capsules of the
     poppy.] (Zool.)
     A kind of gonophore produced by hydroids of the genus
     Gonothyraea. It has tentacles, and otherwise resembles a
     free medusa, but remains attached by a pedicel.
     [1913 Webster]