An example of abdomen is the area that you exercise when doing a sit-up.
- The part of the body cavity from the thorax to the pelvic girdle, containing the digestive organs, etc.; belly: in mammals, the diaphragm separates this from the thorax.
- The region of the trunk between the chest and pelvis.
He was all bent over complaining of pains in the abdomen.
Origin of abdomen
- Latin abdōmen belly dhē- in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition