卵らん嚢のう

noun, noun which may take the genitive case particle 'no'

egg sac; egg case; ootheca

Biological term for a protective structure containing eggs, used especially for insects, spiders, and some aquatic animals.

• クモの卵らん嚢のうが葉はの裏うらに付ついていた。

  A spider's egg sac was attached to the underside of the leaf.

• ゴキブリの卵らん嚢のうは硬かたい殻からで覆おおわれている。

  The cockroach's ootheca is covered with a hard shell.