精せい虫ちゅう

noun

spermatozoon; sperm

Biological term for a single sperm cell. In everyday contexts, 精子 (せいし) is more common.

• 精せい虫ちゅうは卵らん子しと結けつ合ごうして受じゅ精せいが起おこる。

  A spermatozoon fuses with an ovum to cause fertilization.