Final answer:
Gastr/o+enter/o+logy refers to the field of medicine that deals with the study and treatment of diseases and disorders of the gastrointestinal (GI) tract.
Step-by-step explanation:
The word Gastr/o+enter/o+logy combines the root words Gastr/o, enter/o, and logy. Gastr/o refers to the stomach, enter/o refers to the intestines, and logy means the study or science of. Therefore, Gastr/o+enter/o+logy refers to the field of medicine that deals with the study and treatment of diseases and disorders of the gastrointestinal (GI) tract, which includes the organs of the digestive system such as the mouth, esophagus, stomach, and intestines.