1. an intestinal infection caused by the parasite Giardia lamblia, characterized by diarrhea, abdominal cramps, and malabsorption of nutrients
Usage: medical term; also called giardia or beaver fever (informal)

Examples

• The hiker contracted giardiasis after drinking untreated water from a mountain stream.
• Giardiasis is one of the most common parasitic infections in the United States.
• Symptoms of giardiasis typically appear one to two weeks after exposure to the parasite.
• The doctor prescribed antibiotics to treat the patient's giardiasis.
• Giardiasis can be prevented by boiling water or using water filters when camping.
• Children in daycare centers are at higher risk for giardiasis due to close contact with infected individuals.