marsupium
/mɑːˈsjuːpɪəm/noun
(pl. marsupia /-pɪə/)
- Zoology a pouch that protects eggs, offspring, or reproductive structures, especially the pouch of a female marsupial mammal【动】育囊, 育（仔）袋, 卵袋。
词源
mid 17th cent.: via Latin from Greek marsupion, diminutive of marsipos 'purse'.