(n.) A primitive seminal cell, occurring in masses in the seminal tubules. It divides into a mass (spermosphere) of small cells (spermoblast), which in turn give rise to spermatozoids.

androcyte antheridium antherozoid male gamete milt protein scum seed semen seminal fluid sperm sperm cell spermagonium spermatic fluid spermatid spermatiophore spermatium spermatocyte spermatogonium spermatophore spermatozoa spermatozoid spermatozoon