stomach

noun

1.
an enlarged and muscular saclike organ of the alimentary canal; the principal organ of digestion
Derived from:
stomachic
2.
the region of the body of a vertebrate between the thorax and the pelvis
Derived from:
stomachal
3.
an inclination or liking for things involving conflict or difficulty or unpleasantness
4.
an appetite for food
Derived from:
stomach