- Whirlwinds in which wind speeds are of of gale-force strength and in which surface dust is picked up and carried in dense columns of 5000 ft or more in height. They are formed as a result of the strong convection currents in the hot and dusty regions, such as deserts and other locations where the ground is very hot. Dust devils resemble tiny tornadoes, but they are caused by convective processes and produce significantly less damage than tornadoes. In many cases, they cause no damage of consequence. Also called a dust whirl or sand whirl.
Aviation dictionary. 2014.
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dust devil — dust ,devil noun count a small WHIRLWIND (=strong circular wind) that is common in hot dry parts of the U.S.. Dust devils are much smaller than tornadoes and do not usually cause damage … Usage of the words and phrases in modern English
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dust devil — UK / US noun [countable] Word forms dust devil : singular dust devil plural dust devils a small whirlwind (= strong circular wind) that is common in hot dry parts of the US. Dust devils are much smaller than tornadoes and do not usually cause… … English dictionary
dust devil — noun a miniature whirlwind strong enough to whip dust and leaves and litter into the air • Hypernyms: ↑whirlwind * * * noun, pl ⋯ ils [count] chiefly US : a small area of rapidly spinning wind that contains sand or dust * * * ˈdust devil 7 [dust… … Useful english dictionary
dust devil — 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 dust whirl … Universalium