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conservation law

American  

noun

Physics, Chemistry.
  1. any law stating that some quantity or property remains constant during and after an interaction or process, as conservation of charge or conservation of linear momentum.


conservation law Scientific  
  1. Any of various principles, such as the conservation of charge and the conservation of energy, that require some measurable property of a closed system to remain constant as the system changes. Conservation laws can be directly related to principles of symmetry.

  2. See also invariance Noether's theorem


Etymology

Origin of conservation law

First recorded in 1945–50


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

The move redefines “harm” under the Endangered Species Act, the landmark conservation law that protects threatened and endangered plants and animals.

From Los Angeles Times ● Jul. 11, 2026

It's protected by conservation law, but the status of the river has been downgraded to "unfavourable - declining" by Natural England.

From BBC ● May 24, 2026

Macaques are classified as a protected species under Thailand’s wildlife conservation law.

From Seattle Times ● Apr. 3, 2024

According to a 1915 theorem by mathematician Emmy Noether, any symmetry in a physical system leads to a conservation law.

From Scientific American ● Nov. 18, 2022

Heavy fines and criminal penalties, including imprisonment up to one year, were provided for infringements of the conservation law by enterprises and individuals.

From Area Handbook for Romania by Donald W. Bernier

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