A piece of food that has gotten stuck in the esophagus and prevents further swallowing.
Comment:
Although any type of food can become stuck in the esophagus, in the adult population, structural diseases or abnormalities of the esophagus, specifically eosinophilic esophagitis, are the main causes of food impactions. Eosinophilic esophagitis causes solid food to become stuck in the esophagus intermittently.