conservation

IPA: kɑnsɝvˈeɪʃʌn

The act of preserving, guarding, or protecting; the keeping (of a thing) in a safe or entire state; preservation.
Wise use of natural resources.
(biology) The discipline concerned with protection of biodiversity, the environment, and natural resources
(biology) Genes and associated characteristics of biological organisms that are unchanged by evolution, for example similar or identical nucleic acid sequences or proteins in different species descended from a common ancestor
(culture) The protection and care of cultural heritage, including artwork and architecture, as well as historical and archaeological artifacts
(physics) lack of change in a measurable property of an isolated physical system (conservation of energy, mass, momentum, electric charge, subatomic particles, and fundamental symmetries)

Examples of "conservation" in Sentences

It is a byproduct of the conservation of energy.
Hedgerow policy and protection are changing paradigms and the conservation ethic.
The need is to sensitize the local population and involve them in the conservation and restoration process at the convenient level.