Meaning of dust devil

dust' dev"il

Pronunciation: [key]
  1. 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.