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Definition of Antheridium
1. Noun. The male sex organ of spore-producing plants; produces antherozoids; equivalent to the anther in flowers.
Definition of Antheridium
1. n. The male reproductive apparatus in the lower plants, consisting of a cell or other cavity in which spermatozoids are produced; -- called also spermary.
Definition of Antheridium
1. [n -DIA]
Medical Definition of Antheridium
1. The fertile organ of a male gametophyte or the male organ of a bisexual gametophyte, in which male gametes are formed. (09 Oct 1997)