spermatid Syllabification: (sper·ma·tid)Pronunciation: /ˈspərməˌtid/Definition of spermatid noun Biology an immature male sex cell formed from a spermatocyte that can develop into a spermatozoon without further division. Derivatives spermatidalPronunciation: /ˌspərməˈtīdl/ adjective spermatid in other Oxford dictionaries Definition of spermatid in the British & World English dictionary