The term 'stomach-related' can be summarized by the 7-letter word 'gastric'. Gastric refers to anything related to the stomach, such as the gastric acid that is produced in the stomach and helps to break down food. It can also refer to the gastric mucosa, which is the inner lining of the stomach that produces the gastric acid. Additionally, it can refer to the gastric juices that are secreted by the stomach to aid in digestion.