conservation

Reading level: hard

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

noun an occurrence of improvement by virtue of preventing loss or injury or other change
noun the preservation and careful management of the environment and of natural resources
noun (physics) the maintenance of a certain quantities unchanged during chemical reactions or physical transformations

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

The spirit of national park conservation is exactly opposite. — The Book of the National Parks, Robert Sterling Yard
In accordance with the law of the conservation of energy. — Ulysses, James Joyce
I see the same law working in nature for conservation and growth. — Essays by Ralph Waldo Emerson, Ralph Waldo Emerson

preservation

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