abdomen
belly / midsection / stomach area / posterior body segment
Noun
pl: abdomens
This term is primarily used in medical and biological contexts to describe the midsection of a body. In humans, it carries a clinical tone, often replacing the more casual term belly or stomach when referring to the anatomical region rather than the specific organ. In entomology and zoology, the term describes a specific structural segment of an arthropod. It is a technical designation that distinguishes the rear section of the body from the head and thorax.