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 is often a sign of an underlying problem, such as gastroesophageal reflux disease (GERD), ulcers, or gallbladder disease, rather than a condition of its own. Also called dyspepsia, it is defined as a persistent or recurrent pain or discomfort in the upper abdomen. The symptoms of indigestion include:
For example, indigestion is the condition, and heartburn occasionally is a symptom of indigestion. Indigestion is a vague feeling of discomfort and pain in the upper abdomen and chest, including a feeling of fullness and bloating, accompanied by belching and nausea. Occasionally, heartburn is one of the symptoms. It is a common problem and can be triggered by several things.