heat reservoir

noun

Thermodynamics.

1. a hypothetical body of infinitely large mass capable of absorbing or rejecting unlimited quantities of heat without undergoing appreciable changes in temperature, pressure, or density.

Example Sentences

Because of this difference, water is a better heat reservoir than land – especially big bodies of water, like oceans.

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Even an old air raid bunker in the Wilhelmsburg district has been transformed into a so-called “energy bunker”, with a large heat reservoir.

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The oceans are a massive heat reservoir, absorbing some 90% of the warming from human-caused climate change.

Read more on Science Magazine

I finished the heat reservoir.

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It'll have two bulky Hab batteries, the atmospheric regulator, the oxygenator, and my homemade heat reservoir.

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