中ちゅう黄おう卵らん

noun

centrolecithal egg; mesolecithal egg

Technical term in embryology for an egg with yolk concentrated in the center, typical of insects and many arthropods.

• 昆こん虫ちゅうの卵たまごは中ちゅう黄おう卵らんであることが多おおい。

  Insect eggs are often centrolecithal.