METEORISM

Meteorism is an increased flatulence, bloating. It is manifested by a rise in the abdomen due to the widening of the digestive tract with excessive gas content. It is usually caused by aerophagy, vegetarian diet, intestinal bacteria, dyspepsia, ileum. The gases partly leave the rectum (flatulence) and are partly absorbed in the intestine.

Source

 * Velký lékařský slovník