/ Dictionary / Index A aridisol: Meaning and Definition of Find definitions for: a•rid•i•sol Pronunciation: (u-rid'u-sôl", -sol"), [key] — n. a soil type common to the world's deserts, poor in organic matter and rich in salts. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. aridification aridity index Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language