1. The nucleated cell of a spermatozoon. 
   精子的有核的细胞
2. 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。
3. 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
4. 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
5. 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

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• 1. 无核精子
  apyrene sperm || 无核精子...apyrene spermatozoon || 无核精子...apyretic || 无热的, 不发热的
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• 2. 無核精子
  Related Entries:...apyrene spermatozoon 無核精子...annulus of spermatozoon 精子終環
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