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desertification noun
/dɪˌzɜː.tɪ.fɪˈkeɪ.ʃən/
/-ˌzɝː.t ̬ə-/ n [U] specialized Definition
the process by which land changes into desert, for example because there has been too much farming activity on it or because a lot of trees have been cut down
(Definition of desertification noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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