Bowel and Bowels

Bowel noun - The part of the alimentary canal between the stomach and the anus.

Bowels is a synonym for bowel. In some cases you can replace term "Bowels" with "Bowel", this nouns are similar.

Bowels noun - The center of the Earth.

Bowel is a synonym for bowels. Sometimes you can use "Bowel" instead a noun "Bowels".