Esophageal is an adjective that describes anything related to the esophagus, which is a muscular tube connecting the throat to the stomach. Synonyms for esophageal include pharyngoesophageal, esophagopharyngeal, esophagogastric, and gastroesophageal. These terms are commonly used in medical jargon to describe specific conditions or procedures related to the esophagus. For example, gastroesophageal reflux disease (GERD) is a digestive disorder that occurs when stomach acid flows back into the esophagus, causing irritation and discomfort. Other esophageal conditions include esophageal cancer, Barrett's esophagus, and achalasia, which is a rare condition that affects the ability of the esophagus to move food down to the stomach.