Definitions

1. adjective

Relating to or resembling an archenteron, a hypothetical primitive body of an animal in which the digestive and other systems are not differentiated.

“The archenteric structure of the embryo is crucial for understanding the development of the organism.”

2. noun

A hypothetical primitive body of an animal, especially in the earliest stages of its development.

“The archenteron of the embryo is a key feature of its morphology.”