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Meaning of aridification

a•rid•i•fi•ca•tion

Pronunciation: (u-rid"u-fi-kā'shun), [key]
— n.
  1. the process by which a humid region becomes increasingly dry, as by climatic change or human interference with the ecology. Cf. desertification.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.