Sporosac

1 definition found

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

  Sporosac \Spo"ro*sac\ (sp[=o]"r[-o]*s[a^]k), n. [Spore + sac.]
     (Zool.)
     (a) A hydrozoan reproductive zooid or gonophore which does
         not become medusoid in form or structure. See Illust.
         under {Athecata}.
     (b) An early or simple larval stage of trematode worms and


         some other invertebrates, which is capable of reproducing
         other germs by asexual generation; a nurse; a redia.
         [1913 Webster]