spermatogonium

Any of the cells that give rise through mitosis to the spermatocytes and are found in the testes of vertebrates.

In botany, same as pycnidium, 1.

A primitive or formative seminal cell, forming a kind of sperm-morula, or spermosphere composed of spermatoblasts or spermatocytes, which in turn give rise to spermatozooids.

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

Any of the undifferentiated cells in the male gonads that become spermatocytes; a spermatoblast