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conservation

noun

  1. the ability to determine that a certain quantity will remain the same despite adjustment of the container, shape, or apparent size
  2. care of tangible cultural heritage
  3. ethic of resource use, allocation, and protection
  4. evolutionary conservation
  5. to preserve, economize
L7746 on Wikidata ↗

Wiktionary

Pronunciation: /ˌkɑnsə(ɹ)ˈveɪʃən/

noun

Etymology: From Old French. By surface analysis, conserve + -ation.

  1. The act of preserving, guarding, or protecting; the keeping (of a thing) in a safe or entire state; preservation.
  2. Wise use of natural resources.

    “My father had ideas about conservation long before the United States took it up.[…]You preserve water in times of flood and freshet to be used for power or for irrigation throughout the year. …”

  3. The discipline concerned with protection of biodiversity, the environment, and natural resources
  4. 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
  5. The protection and care of cultural heritage, including artwork and architecture, as well as historical and archaeological artifacts
  6. lack of change in a measurable property of an isolated physical system (conservation of energy, mass, momentum, electric charge, subatomic particles, and fundamental symmetries)