Zool. a stage in the development of the male sex cell, originating by growth from a spermatogonium
Origin:
spermato- + -cyte
See spermatocyte in American Heritage Dictionary 4
noun
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.