肛こう後こう腸ちょう

noun

postanal gut; post-anal gut; postcloacal gut

A specialized anatomical term used in embryology and developmental biology to refer to the transient structure caudal to the cloaca.

• 肛こう後こう腸ちょうは発はっ生せいの過か程ていで一いち時じ的てきに見みられる構こう造ぞうです。

  The postanal gut is a structure that appears transiently during development.