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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 ?
However in diabetic+200 rats the number of different germ cells was increased compared to diabetic group and also the number of primary spermatocyte and spermatid cells were significantly increased compared to diabetic group.
At early stage of 2 weeks, TDRD12 was detected in the cytoplasm of primary spermatocyte (Figure 4).
In a study, administration of 200 and 300 mg/kg to rats for 60 days showed a significant increase in the number of sperms, sertoli cells, and primary spermatocyte compared to the control group.
Spermatogenesis was also divided into five stages: spermatogonia, primary spermatocyte, secondary spermatocyte, spermatids and spermatozoa.
The primary spermatocyte is the largest of the germ cells in the tubule, and the various stages are distinguished based on the degree of chromosome coiling.
Under normal physiological conditions, the primary spermatocyte (in preleptotene) migrates through the junctions of the Sertoli cells from the basal membrane to the tubules intraluminal compartment.
Upon formation, a primary spermatocyte enters interphase, or the resting phase between cell divisions.
Moreover, in our study, proacrosomal vesicle formation occurs in the spermatid stage, whereas Sousa and Oliveira (1994) report its occurrence in the primary spermatocyte.
01) changes in the multinuclear structure in spermatogenic cells, predominantly in primary spermatocyte cells in the walls of some tubules and necrotic spermatogenic cells with eosinophilic cytoplasm and pyknotic nucleus were observed (Figure 3c).
showed that celery in addition to protecting the testes is capable to increase spermatogonium, spermatozoid, and the primary spermatocyte [21].