abdomin/o , celi/o or lapar/o is the combining form that refers to “abdomen” or “abdominal”.
In the body, the abdomen (also known as the belly) is the space between the thorax (chest) and pelvis. A wide variety of organs are found in the abdomen, including the stomach, the small intestine (jejunum and ileum), the large intestine (colon), the liver, the spleen, the gallbladder, the pancreas, the uterus, the fallopian tubes, the ovaries, the kidneys, the ureters, and the bladder.