Gastric a. : Of, pertaining to, or situated near, the stomach; as, the gastric artery.

Example:
What are the downsides to Gastric bypass surgery?

Taxonomy
stomach, layer, gland, food, small intestine, organ, secretion, motility, gastrin, greater curvature, mammals, EGF, lies, fundic glands, body, digestive system, stomach wall, hormone.

Defination from the web:
gastric (meaning related to the stomach) are both derived from the Greek word gaster (γαστήρ) ... The fundus of the stomach, and also the upper portion of the greater curvature, are supplied by the short gastric artery. ...