Your abdomen is another name for your stomach, so it digests food with a strong acid. If the food the you eat is too strong for the acid, it gets stored in your appendix.
A boat-shaped abdomen is another term for a scaphoid abdomen - a condition in which the abdomen's anterior wall is sunken and hollow.
Yes, whales do have an abdomen.
Fluid that accumulates in the abdomen creates abnormal pressures on organs in the abdomen.
The suffix for abdominal is -al
No, the hymen isn't in the abdomen.