| abdomen | |
| 1. n. (obsolete) The fat surrounding the belly. | |
| 2. n. (anatomy) The belly, or that part of the body between the thorax and the pelvis, not including the back; or in some lower vertebrates, the portion between the cardiac and caudal regions. | |
| 3. n. (anatomy) The cavity of the belly, which is lined by the peritoneum, and contains the viscera; often restricted in humans to the part between the diaphragm and the commencement of the pelvis, the rema | |
| He was all bent over complaining of pains in the abdomen. | |
| 4. n. (zoology, entomology) The posterior section of the body, behind the thorax, in insects, crustaceans, and other Arthropoda. | |
