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

(Greek: stomach, belly)

aerogastria (s) (noun), aerogastrias (pl)
1. The presence of gas in the stomach; stomach bubbles: Also known as "blocked aerogastria which is caused when the lower esophagu, the canal that connects the throat to the stomach, prevents belching.
2. Distention of the stomach with gas.
agastria (s) (noun), agastrias (pl)
Absence of a stomach: Agastria is a term that designates certain organisms which have no proper digestive cavities or stomachs.
agastric (adjective), more agastric, most agastric
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.
arachnogastria (s) (noun), arachnogastrias (pl)
A spider belly or the protuberant abdomen of an emaciated person with ascites, the accumulation of serous, or body fluid: Arachnogastria is 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.
cacogastric (adjective), more cacogastric, most cacogastric
Descriptive of a troubled or deranged stomach or bad digestion: The man sitting next to Karl on the subway appeared to have a cacogastric stomach problem because he explained that he had to take some peptic medication for it.
celiogastrotomy (s) (noun), celiogastrotomies (pl)
A surgical incision or cut, through the abdominal wall into the stomach.
cholecystgastrostomy (s) (noun), cholecystgastrostomies (pl)
The surgical formation of a connection between the gallbladder and the stomach.
cholecystogastric (adjective), more cholecystogastric, most cholecystogastric
Referring to the gallbladder and stomach.
dextrogastria (s) (noun), dextrogastrias (pl)
A condition in which the stomach is displaced to the right side of the body instead of the middle.
digastric (adjective), more digastric, most digastric
Pertaining to two small muscles located under the jaw: The term digastric muscles refer to these specific muscles which assist in lowering each of the upper and lower bony structures in vertebrates that form the framework of the mouth and containing the teeth.
electrogastroenterostomy
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).
electrogastrogram
1. A study in which the electrical current generated by the muscles of the stomach are sensed and recorded.
2. A test in which the electrical current generated by the muscles of the stomach are sensed and recorded in a manner very similar to that of an electrocardiogram of the heart.

An electrogastrogram is performed by taping electrodes to the skin on the upper abdomen over the stomach.

Recordings from the muscles are stored and analyzed by a computer and the electrogastrogram is performed in order to diagnose motility disorders of the stomach, conditions which prevent the muscles of the stomach from working normally.

electrogastrograph
1. An instrument for recording the electrical activity of the stomach by means of swallowed gastric electrodes.
2. A graphic recording of the change in electrical potential associated with gastric secretion and movement.
electrogastrography
1. The recording of the electrical activity of the stomach as measured between its lumen (cavity) and the body surface.
2. The process of recording and analyzing the electrical activity of the stomach.
endogastrectomy
The surgical removal of inner part of the stomach.