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Webster 1913 Edition
Sporosac
Spo′ro-sac
(spō′rō̍-săk)
, Noun.
[
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.