nonacrosomal en · ADJ
Etymology
From non- + acrosomal.
Meanings
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(not-comparable) Not acrosomal; unrelated to acrosomes.
The acrosome reaction is a prerequisite for fusion between ova and spermatozoa plasma membranes, and zona free ova cannot undergo fusion with nonacrosomal activated sperm even though attachment to the membrane surface occurs (Fig. 8-3).
2013, E. S. E. Hafez, B. Hafez, Reproduction in Farm Animals:Even in spermatids of the cat and of man in which Burgos and Fawcett (1955) and Fawcett (1958) have shown that a fibrous perforatorium does not occur, it can nevertheless be seen in thin sections (Fawcett, 1958; Horstmann, 1961) that the homologous sites contain at least small amounts of nonacrosomal substance.
2014, Charles B. Metz, Alberto Monroy, Fertilization, page 350:When this occurs are new nonacrosomal antigens becoming involved?
1977, Edidin, M. H. Johnson, Immunobiology of Gametes, page 183: