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English definition of “conservation”

conservation

noun [U] uk   /ˌkɒn.səˈveɪ.ʃən/ us    /ˌkɑːn.sɚ-/
B2 the protection of plants and animals, natural areas, and interesting and important structures and buildings, especially from the damaging effects of human activity: wildlife conservation a conservation area C1 carefully using valuable natural substances that exist in limited amounts in order to make certain that they will be available for as long a time as possible: the conservation of coal/gas/oil reserves Energy conservation reduces your fuel bills and helps the environment.
conservationist
noun [C] uk   /-ɪst/ us  
Conservationists are fighting to save the tiger.
(Definition of conservation from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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