spermatid showing a conspicuous chromatin element in nucleus, and spindle-remains (s) elongated.
spermatid, showing acrosome material (a) migrating to side of nucleus opposite centrosome.
spermatid, showing centrosome (c) and divided spindle-remains (s and a).
spermatid with divided spindle-substance and the corresponding double-tailed form.
spermatid sper·ma·tid (spûr'mə-tĭd)
Any of the four haploid cells formed by meiosis in a male organism that develop into spermatozoa without further division.