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:
Common indigestion symptoms and signs include: Abdominal pain. Heartburn or acid indigestion (acid reflux) Bloating (full feeling) Excessive gas (belching, burping or flatulence) Nausea with or without vomiting. Acidic taste in the mouth. Gurgling, rumbling, or growling stomach discomfort.