/ Dictionary / Index A aridification: Meaning and Definition of Find definitions for: a•rid•i•fi•ca•tion Pronunciation: (u-rid"u-fi-kā'shun), [key] — n. 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. arid aridisol Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language