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English definition of “conservation”

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conservation

noun [U]  /ˌkɑn·sərˈveɪ·ʃən/ us  
Conservation is a plan for avoiding the unnecessary use of natural materials such as wood, water, or fuel: The university is saving $300,000 per year by its energy conservation efforts. Conservation is also the protection of plants, animals, and natural areas, esp. from the damaging effects of human activity: wildlife conservation
(Definition of conservation from the Cambridge Academic Content Dictionary © Cambridge University Press)
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