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.
Introduction. Indigestion can be pain or discomfort in your upper abdomen (dyspepsia) or burning pain behind the breastbone (heartburn). Dyspepsia and heartburn may occur together or on their own. Symptoms usually appear soon after eating or drinking. Common associated symptoms include: 1  feeling full or bloated.