You searched for: “acrosome
1. A structure at the end of a sperm cell that releases enzymes to digest the cell membrane of an egg, enabling the sperm to penetrate and enter the egg for fertilization.
2. Body at the apex of spermatozoon; apical body; perforatorium.
3. A cytoplasmic cap-like structure on the front of a spermatozoan (sperm; a mature male germ cell).