abdomen
Definitions
The part of the body between the thorax and the pelvis; the belly.
The posterior segment of the body of an arthropod, such as an insect or crustacean.
Examples
The doctor examined his abdomen to determine the cause of the sharp pain.
Doing crunches every day is a great way to strengthen your abdomen.
The insect has a distinct head, thorax, and abdomen.