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.

From Salon

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

From The Guardian

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

From Science Magazine

“Water is an enormous heat reservoir,” James White, the director of the Institute of Arctic and Alpine Research at the University of Colorado Boulder, told me.

From The New Yorker

I finished the heat reservoir.

From Literature