Pyrexia, or fever, is when your body temperature exceeds the normal range of 98.6°F (37°C). Learn about the different types, causes, symptoms, and treatments of pyrexia, and how to prevent it with hydration, nutrition, and hygiene. In this lesson, learn what is pyrexia. Learn how pyrexia occurs and the role of the hypothalamus in it. Understand the common symptoms and how... Fever, or pyrexia, is the elevation of an individual's core body temperature above a 'set-point' regulated by the body's thermoregulatory center in the hypothalamus. Pyrexia is a medical term for a body temperature higher than usual. Learn how to pronounce it, compare it with fever, and see sentences with pyrexia.
