The pyloric sphincter is a valve-like structure present at the lower end of the stomach that regulates the flow of partially digested food from the stomach to the small intestine. Some common synonyms for pyloric sphincter include pylorus, gastroduodenal sphincter, and pyloric canal. Other less common synonyms include pyloric valve, pyloric orifice, and pyloric antrum. It is essential for the proper functioning of the digestive system and any malfunction can lead to various health complications such as gastroparesis or reflux disease. Therefore, understanding the various synonyms for the pyloric sphincter can aid in effective communication between healthcare providers and patients about digestive health.