conservation law


noun Physics, Chemistry.

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.

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Origin of conservation law

First recorded in 1945–50
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Scientific definitions for conservation law

conservation law

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. See also invariance Noether's theorem.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.