/ Dictionary / Index D dust devil: Meaning and Definition of Find definitions for: dust' dev"il Pronunciation: [key] a small whirlwind 10–100 ft. (3–30 m) in diameter and from several hundred to 1000 ft. (305 m) high, common in dry regions on hot, calm afternoons and made visible by the dust, debris, and sand it picks up from the ground. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. dust cover duster Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language