Which term refers to an abnormally low body temperature?

Hypothermia refers to an abnormally low body temperature, specifically when the body temperature drops below the normal range of around 98.6°F (37°C). When the body loses heat more quickly than it can produce it, this condition occurs, which can have serious effects on bodily functions and can lead to life-threatening situations if not addressed. Hypothermia is often associated with prolonged exposure to cold weather, cold water, or inadequate clothing in low temperatures. Recognizing and treating hypothermia promptly is crucial to prevent complications such as cardiac arrest and organ failure.

In contrast, other terms provided do not relate to body temperature. A vector typically refers to an organism that transmits a pathogen, tendinitis is the inflammation of a tendon due to overuse or injury, and a laceration is a type of cut or tear in the skin or tissues. Each of these terms pertains to different medical conditions or contexts that do not involve body temperature regulation.