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Noun, pl. abdomens or abdomina

1. In vertebrates such as mammals, constitutes the part of the body between the thorax (chest) and pelvis. (

2. The region of the body in between the thorax and the pelvis. (

3. The part of the body where stomach, intestines, liver, spleen, and pancreas are contained inside a cavity lined by peritoneum. (

4. The posterior part of the body of an arthropod, esp. the segments of an insect’s body behind the thorax. (Google dictionary)

Word origin: From Latin abdōmen.

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