Hypertext Webster Gateway: "Spermosphere"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Spermosphere \Sper"mo*sphere\, n. [Spermo- + sphere.] (Physiol.)
A mass or ball of cells formed by the repeated division of a
male germinal cell (spermospore), each constituent cell
(spermoblast) of which is converted into a spermatozoid; a
spermatogemma.
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