carbon monoxide. 1. a colorless, odorless, poisonous gas, CO, that burns with a pale-blue flame, produced when carbon burns with insufficient air: used chiefly in organic synthesis, metallurgy, and in the preparation of metal carbonyls, as nickel carbonyl. Origin of carbon monoxide. 1870-1875.
Indigestion (Dyspepsia) Definition and Facts. Indigestion is a general term that describes a group of gastrointestinal symptoms that occur together, including pain, a burning feeling, or discomfort in your upper abdomen; feeling full too soon while eating; and feeling uncomfortably full after eating.
Acid indigestion or dyspepsia is discomfort (i.e., burning feeling) in the pit or lower part of the stomach or abdomen (National Institute of Diabetes and Digestive and Kidney Diseases/NIDDK, 2004). It is also referred to colloquially as indigestion or upset stomach.