closed system

noun

, Thermodynamics.

1. a region that is isolated from its surroundings by a boundary that admits no transfer of matter or energy across it.

closed system

1. A physical system that does not interact with other systems. A closed system obeys the conservation laws in its physical description.
2. Also called isolated system
3. Compare open system

Word History and Origins

Origin of closed system¹

First recorded in 1895–1900

Example Sentences

However, it is difficult to say how this particular model reasons because it is a closed system.

From Science Daily

Because we have not fully aired the utter weirdness of having such a completely closed system such that nobody who litigates a Jan. 6 case at the Supreme Court can stand at the lectern and say, “Oh, by the way, that guy, he should not be here.”

From Slate

Unlike cell phone or car batteries, those designed for grid energy storage do not have to function as a portable, closed system.

From Science Daily

However, the energy and momentum of solar wind particles on open field lines does transfer to the closed system.

From Science Daily

Not everyone, including some in the Republican party, are in favor of a closed system.

From Seattle Times