spermatogonium sper·mat·o·go·ni·um (spər-māt'ə-gō'nē-əm, spûr'mə-tə-) n.pl.sper·mat·o·go·ni·a (-nē-ə) Any of the cells of the gonads in male organisms that are the progenitors of spermatocytes. Also called spermatoblast.
spermatogonium (spər-māt'ə-gō'nē-əm) Pronunciation Key Pluralspermatogonia
Any of the cells of the gonads in male organisms that undergo mitosis to form spermatocytes as well as new spermatogonia. See more at spermatogenesis.