Extreme persistent vomiting that can cause dehydration is known as?

The extreme persistent vomiting that can lead to dehydration is called gastroenteritis. It is commonly referred to as the stomach flu or viral gastroenteritis. Typically caused by a viral infection, gastroenteritis affects the lining of the stomach and intestines, leading to symptoms like vomiting, diarrhea, abdominal pain, and fever. In severe cases, persistent vomiting can cause dehydration and electrolyte imbalances, requiring medical attention.