Spo"ro*sac (?), n. [Spore + sac.]
(Zoöl.) (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 or reproducing
other germs by asexual generation; a nurse; a redia.
Spo"ro*sac (?), n. [Spore + sac.]
(Zoöl.) (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 or reproducing
other germs by asexual generation; a nurse; a redia.