gastr-, gastro-, gaster-, gastero-, gastri-, -gastria-

1. The presence of gas in the stomach; stomach bubble.
2. Distention of the stomach with gas.

Absence of a stomach: "Agastria is a term that designates certain organisms which have no proper digestive cavities or stomachs."

A descriptive term indicating species that have no alimentary canals: "There are agastric creatures that do not have a tubular passage which functions in digestion and elimination."

A small, rudimentary leaflike growth on the underside of the stem of certain liverworts.

A gastrula composed of cells of unequal size in its upper and lower hemispheres.

Spider belly or the protuberant abdomen of an emaciated person with ascites.

Ascites is the accumulation of serous, or body fluid, in the peritoneal cavity or transparent membrane that lines the abdominal cavity, most commonly encountered with heart failure and portal hypertension or the excessive tension of the large vein that carries blood from the stomach and intestines to the liver.

1. Troubled with bad digestion.
2. Having a deranged stomach.

The creation of a communication between the stomach and the small intestine, utilizing an electric cautery (an instrument which is used to coagulate or to destroy tissue by means of heat).