Antheridium \An`ther*id"i*um\, n.; pl. {Antheridia}. [Anther + ?
(a Gr. diminutive ending).] (Bot.)
The male reproductive apparatus in the lower, consisting of a
cell or other cavity in which spermatozoids are produced; --
called also {spermary}. -- {An`ther*id"i*al}, a.
antheridial
adj : relating to or characterized by an antheridium