Dictionary definition · belly
noun
- the region of the body of a vertebrate between the thorax and the pelvis
- a protruding abdomen
- a part that bulges deeply"the belly of a sail"
- the hollow inside of something"in the belly of the ship"
- the underpart of the body of certain vertebrates such as snakes or fish
verb
- swell out or bulge out
Source: Open English WordNet (CC BY 4.0).