Noun
conservation -
(physics) the maintenance of a certain quantities unchanged during chemical reactions or physical transformations
principle a basic truth or law or assumption; "the principles of democracy"
natural philosophy ,
physics the science of matter and energy and their interactions; "his favorite subject was physics"
conservation of charge ,
conservation of electricity the principle that the total electric charge of a system remains constant despite changes inside the system
conservation of energy ,
first law of thermodynamics ,
law of conservation of energy the fundamental principle of physics that the total energy of an isolated system is constant despite internal changes
conservation of mass ,
conservation of matter ,
law of conservation of mass ,
law of conservation of matter a fundamental principle of classical physics that matter cannot be created or destroyed in an isolated system
conservation of momentum the principle that the total linear momentum in a closed system is constant and is not affected by processes occurring inside the system
conservation -
the preservation and careful management of the environment and of natural resources
saving ,
preservation the activity of protecting something from loss or danger
conservancy the official conservation of trees and soil and rivers etc.
soil conservation protection of soil against erosion or deterioration
oil conservation the conservation of petroleum resources
conservation -
an occurrence of improvement by virtue of preventing loss or injury or other change
preservation
betterment ,
improvement ,
advance an improvement that adds to the value of a property or facility
