abdomen

ab·do·men   (āb'də-mən, āb-dō'mən)    n.   The part of the body that lies between the thorax and the pelvis and encloses the stomach, intestines, liver, spleen, and pancreas. Also called belly. The corresponding region in vertebrates other than mammals. The posterior segment of the body in arthropods. [Latin abdōmen, belly; see dhē- in Indo-European roots.]

abdomen [(ab-duh-muhn, ab-doh-muhn)]

The part of the body between the thorax (chest) and pelvis that encloses the organs of the abdominal cavity; the belly.

abdomen 

Main Entry: ab·do·men
Pronunciation: 'ab-d&-m&n, -"dO-; &b-'dO-m&n, ab-
Function: noun
1 a : the part of the bodybetween the thorax and the pelvis with the exception of the back called also belly b : the cavity of this part of the trunk lined by the peritoneum, enclosed by the body walls,the diaphragm, and the pelvic floor, and containing the visceral organs (as the stomach, intestines, and liver) c : the portion of this cavity between the diaphragm and the brim of thepelvis —compare PELVIC CAVITY
2 : the posterior often elongated region of the body behind thethorax in arthropods

abdomen ab·do·men (āb'də-mən, āb-dō'mən)
n.
The part of the body that lies between the chest and the pelvis and encloses the stomach, intestines, liver, spleen, and pancreas. Also called belly, venter.

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ab·dom'i·nal (āb-dŏm'ə-nəl) adj.
ab·dom'i·nal·ly adv.