Gastroenteritis (noun)

1. Inflammation of the stomach and intestines, typically caused by infection or food poisoning and characterized by abdominal pain, nausea, vomiting, and diarrhea.
2. A medical condition characterized by inflammation of the stomach and intestines, usually caused by infection or food poisoning, and marked by symptoms such as abdominal pain, nausea, vomiting, and diarrhea.

Origin:

Late 19th century: from gastr- (from greek gastēr "stomach") + enter- (from enteron "intestine") + -itis.

Examples:

1. He had a bad case of gastroenteritis and was unable to keep food down.
2. The symptoms of gastroenteritis include nausea, vomiting, and diarrhea.
3. Gastroenteritis is commonly caused by food poisoning or viral infections.
4. Gastroenteritis is a common ailment, especially in developing countries.
5. Gastroenteritis can be treated with fluids and rest, and in some cases, medication.