body heat

American  

[bod-ee heet] / ˈbɒd i ˌhit /

noun

1. Physiology. heat generated in the body of a living animal through processes such as metabolism and muscle activity.

   When body temperature is low, muscles can contract to produce body heat.

   A good down sleeping bag will provide insulation to keep your body heat from escaping if you’re winter camping.

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Etymology

Origin of body heat

First recorded in 1860–65

Example Sentences

Even if a sniper can find a hideout, their body heat may warm it enough for drones with thermal imagery to spot.

From The Wall Street Journal • May 14, 2026

To test the system, researchers used computer simulations that modeled breathing, body heat and airflow during a 30-minute consultation scenario.

From Science Daily • Nov. 21, 2025

When it is not possible to keep rooms heated to 18C, he recommends wearing gloves, warm socks and a woolly hat, eating a higher carbohydrate diet and generating more body heat by moving around.

From BBC • Nov. 18, 2025

Unsure what to say, Hope leaned his chest over the cot, passing his body heat to her.

From Salon • Nov. 25, 2024

My own body heat plus three layers of clothing kept me warm, and the rover's insulation is top-notch.

From "The Martian" by Andy Weir

Related Words

• climate
• cold
• condition
• heat
• warmth