1.A pore in the membrane covering the ovum of some animals through which a spermatozoon can enter.
卵膜孔一些动物卵细胞覆盖膜上的小孔，精子可由此进入
2.The nucleated cell of a spermatozoon.
精子的有核的细胞
3.An organic cell or organized body that has independent movement within a living organism, especially a motile gamete such as a spermatozoon.
游动孢子在有机体内可以独立运动的生物细胞或有组织结构的肢体，特别指能动的配子，例如精子
4.A caplike structure at the anterior end of a spermatozoon that produces enzymes aiding in egg penetration.
精子头粒蛋白一种在精子内前端的帽状结构，可产生帮助穿透卵子的酶
5.Either of two conjugating gametes that differ in structure or behavior, such as the small, motile male spermatozoon and the larger, nonmotile female ovum.
异形配子在结构或行为上不同的两个配合配子之一，如小的能动的雄性精子与大的不能动的雌性卵子
6.the act of becoming pregnant; fertilization of an ovum by a spermatozoon.
怀孕的行为；卵子与精子结合成受精卵的过程。
