Medical Definition of indigestion
1: inability to digest or difficulty in digesting food : incomplete or imperfect digestion of food
2: a case or attack of indigestion marked especially by pain, discomfort, or a burning sensation in the upper abdomen often accompanied by abdominal bloating, nausea, belching, flatulence, or uncomfortable fullness
Seen and Heard
What made you want to look up indigestion? Please tell us where you read or heard it (including the quote, if possible).