What is gastrious?

It seems like "gastrious" may be a typographical error or a misspelling, as it does not correspond to a recognized term in English. If you meant "gastroesophageal," it refers to the area where the stomach and esophagus meet, often in discussions about conditions like gastroesophageal reflux disease (GERD). If you meant something else, please provide more context or clarify the term for a more accurate response.