What part of the body does "gastro-" refer to?

The prefix "gastro-" specifically refers to the stomach. This term is derived from the Greek word "gaster," which means stomach. In medical terminology, "gastro-" is commonly used in various terms related to the stomach and its functions, such as "gastroenterology," which is the study of diseases affecting the stomach and intestines. This clarity in meaning makes "gastro-" distinctly associated with the stomach rather than other parts of the digestive system like the intestine, liver, or colon. Understanding prefixes like "gastro-" is essential in medical terminology, as they provide insight into the specific area being referred to in a medical context.