Hypothermia (noun)

1. A medical condition in which the body's temperature drops below normal.
2. A condition in which the body's internal temperature falls below the normal range.

Origin:

Late 19th century: from hypo- "below" + thermia "heat". originally used to describe exposure to low temperatures, hypothermia is now also used to describe a pathological lowering of body temperature from any cause.

Examples:

1. The elderly man was suffering from hypothermia and needed to be warmed up immediately.
2. The hikers were suffering from hypothermia after being caught in a snowstorm.
3. The baby was diagnosed with hypothermia due to the exposure to cold.
4. The patient's hypothermia was caused by the side effect of certain drugs.
5. The hypothermia made her feel weak and drowsy.