abdomen

US /ˈæb.də.mən/
UK /ˈæb.də.mən/
"abdomen" picture
1.

the part of the body of a mammal between the thorax and the pelvis; the belly.

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He felt a sharp pain in his abdomen.
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The doctor examined her abdomen carefully.
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bellytummystomachmidriff
2.

the posterior part of the body of an arthropod, especially the segments of the body behind the thorax in insects, spiders, and crustaceans.

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The bee's abdomen contains its sting.
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Spiders have two main body parts: the cephalothorax and the abdomen.