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.
Indigestion (dyspepsia) is a mild discomfort in the upper belly or abdomen. It occurs during or right after eating. It may feel like: 1  Heat, burning, or pain in the area between the navel and the lower part of the breastbone.  Unpleasant fullness that comes on soon after a meal begins or when the meal is over.