whirlwind

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whirlwind

whirlwind revolving mass of air resulting from local atmospheric instability, such as that caused by intense heating of the ground by the sun on a hot summer day. Examples of whirlwinds are waterspouts , tornadoes , small whirls of dust or leaves, and the sand whirls of the desert, called dust devils or dust whirls.

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"whirlwind." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. 15 Nov. 2009 <http://www.encyclopedia.com>.

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whirlwind

The Concise Oxford Dictionary of English Etymology | 1996 | | Â© The Concise Oxford Dictionary of English Etymology 1996, originally published by Oxford University Press 1996. (Hide copyright information) Copyright

whirlwind XIV. prob. — ON. hvirfilvindr (see WHIRL, WIND1).

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T. F. HOAD. "whirlwind." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. 15 Nov. 2009 <http://www.encyclopedia.com>.

T. F. HOAD. "whirlwind." The Concise Oxford Dictionary of English Etymology. 1996. Encyclopedia.com. (November 15, 2009). http://www.encyclopedia.com/doc/1O27-whirlwind.html

T. F. HOAD. "whirlwind." The Concise Oxford Dictionary of English Etymology. 1996. Retrieved November 15, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O27-whirlwind.html

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whirlwind

A Dictionary of Earth Sciences | 1999 | | Â© A Dictionary of Earth Sciences 1999, originally published by Oxford University Press 1999. (Hide copyright information) Copyright

whirlwind A spiral wind storm around a low-pressure centre. In arid areas dust may be carried upward several hundred metres.

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AILSA ALLABY and MICHAEL ALLABY. "whirlwind." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 15 Nov. 2009 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "whirlwind." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (November 15, 2009). http://www.encyclopedia.com/doc/1O13-whirlwind.html

AILSA ALLABY and MICHAEL ALLABY. "whirlwind." A Dictionary of Earth Sciences. 1999. Retrieved November 15, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-whirlwind.html

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