<p><strong>Noun</strong></p><ul><li>The part of the body of a mammal between the thorax and the pelvis; belly.</li><li>The cavity of this part of the body containing the stomach, intestines, etc.</li><li>(In nonmammalian vertebrates) a region of the body corresponding to, but not coincident with, this part or cavity.</li><li>The posterior section of the body of an arthropod, behind the thorax or the cephalothorax.</li></ul>