closed system

noun

A physical system whose interaction with its environment is limited to particular types of transfer, so that certain quantities are conserved within the system.

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Meanings

nounclosed system (plural closed systems)

plural closed systems

  1. physicalchemistryA physical system whose interaction with its environment is limited to particular types of transfer, so that certain quantities are conserved within the system.
  2. natural sciencesA system that can exchange heat and work, but not matter, with its surroundings.
Cite this entry
APA

closed system. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/closed%20system

MLA

“closed system.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/closed%20system. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “closed system,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/closed%20system.

Source: closed system on Wiktionary, CC BY-SA 4.0.