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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 ?
1A), whereas the nuclei of secondary spermatocytes stained lighter than primary spermatocytes and their arrangement was not as rigid (Fig.
In adult rats, Madhu, Sarkar, Biswas, Behera, and Patra (2011) observed reduction in seminiferous tubular areas, secondary spermatocytes and nuclear diameter of Leydig and Sertoli cells after 45 days of exposure to 1 mg [kg.
The testes have germinal epithelium composed of two compartments: interstitial, formed by the connective tissue, blood vessels and Leydig cells, a thin peritubular cover of myoid cells and collagenous fibers surrounding the tubules; and germinal, formed by the tubules comprising germ cells (spermatogonia, primary and secondary spermatocytes and spermatozoa) and somatic cells (Sertoli) lying on a basement membrane (Fig.
Seven individuals were classified as early transitional fish because they contained crypts of primary and secondary spermatocytes or spermatids and oocytes in either the cortical alveoli stage or yolk globule stage (Fig.
This study has also showed abnormal morphological changes to primary & secondary spermatocytes as well as their nuclei and Chrominance element.
Secondary spermatocytes turn to four haploid round spermatids by completion of meiosis.
The preleptotene spermatocytes enter prophase I of meiosis, transform into leptotene, zygotene, pachytene and diplotene cells, which then quickly finish meiosis I forming secondary spermatocytes.
Whereas spermatogonia were ovoid-shaped immature cells in the basal compartment and primary or secondary spermatocytes were the biggest cells spermatids were rounded or elongated with smaller nucleus and less cytoplasm.
These authors also classified primary and secondary spermatocytes in 1 category, reporting the cells to be 1.
The testicles of adult intersex goats showed normal seminiferous tubules, primary and secondary spermatocytes and interstitial cells of Leydig.
tuberosum derive from established times for secondary spermatocytes, testis spermatids and epididymis sperm assessment (Oakberg 1956).
The sertoli cells, spermatogonia, secondary spermatocytes and spermatids were counted under 100x magnification.