| capacitation | <biology> A process occurring in mammalian sperm after exposure to secretions in the female genital tract. Surface changes take place probably involved with the acrosome which are necessary before the sperm can fertilize an egg. (16 Dec 1997) |
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| sperm capacitation | The process by which a spermatozoon becomes capable of fertilizing an ovum after it reaches the ampullary portion of the uterine tube. (12 Dec 1998) |
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