- Bot. a cell that develops into a spermatozoid
- Zool. a stage in the development of the male sex cell, originating by growth from a spermatogonium
Origin of spermatocytespermato- + -cyte
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.