Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.
A diploid cell that undergoes meiosis to form four spermatids. A primary spermatocyte divides into two secondary spermatocytes, which in turn divide to form the spermatids.
nAlso called: nematoblast or nematocide
1. (Zoology) zoology an immature male germ cell, developed from a spermatogonium, that gives rise, by meiosis, to four spermatids
2. (Botany) botany a male germ cell that develops into an antherozoid
a male sex cell that gives rise by meiosis to a pair of haploid cells, which become the reproductive cells.