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 (spər-măt′ə-sīt′, spûr′mə-tə-)
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.


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
Also called: nematoblast or nematocide


(spɜrˈmæt əˌsaɪt)

a male sex cell that gives rise by meiosis to a pair of haploid cells, which become the reproductive cells.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.spermatocyte - a male gametocyte that develops into four spermatids
gametocyte - an immature animal or plant cell that develops into a gamete by meiosis
References in periodicals archive ?
These authors also classified primary and secondary spermatocytes in 1 category, reporting the cells to be 1.
In early recrudescence, primary spermatocytes predominate, whereas in late recrudescence, secondary spermatocytes and spermatids are most abundant; (3) Spermiogenesis, lumina of the seminiferous tubules are lined by clusters of sperm or metamorphosing spermatids.
In first meiosis division, smaller cells called secondary spermatocytes emerge.
Three stages were observed: (1) Regressed, the germinal epithelium of the seminiferous tubules is reduced to one or two layers of spermatogonia and Sertoli cells; (2) Recrudescence, there is a proliferation of primary and secondary spermatocytes for the upcoming period of spermiiogenesis; (3) Spermiogenesis, seminiferous tubules are lined by sperm and/or clusters of metamorphosing spermatids.
Specifically, primary spermatocytes and secondary spermatocytes strongly expressed cPdcl2 mRNA at 10 weeks.
Sertoli cells, spermatogonia, primary spermatocytes, secondary spermatocytes and round spermatids were count ed under 100* magnification using ocular and stage micrometer from twenty randomly selected seminiferous tubules from each slides.
Population of preleptotene, pachytene, secondary spermatocytes and step-19 spermatid were declined by 60.
Number of spermatogonia, primary spermatocytes, secondary spermatocytes and round spermatids decreased significantly [P<0.