ANTHERIDIUM
antheridium
(noun) the male sex organ of spore-producing plants; produces antherozoids; equivalent to the anther in flowers
Source: WordNet® 3.1
Etymology
Noun
antheridium (plural antheridia)
(botany, mycology) An organ producing male gametes called antherozoids, found in some algae, ferns, and bryophytes.
Source: Wiktionary
An`ther*id"i*um, n.; pl. Anthplwidia. Etym: [Anther + (Bot.)
Definition: 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.
Source: Webster’s Unabridged Dictionary 1913 Edition