Noun
A remarkable meteorological phenomenon, of the nature of a tornado or whirlwind, usually observed over the sea, but sometimes over the land.
Source: Webster's dictionaryAn early mention of the problems of soil erosion was made in 1718 when a waterspout broke over Sandy Bay, on the southern coast. Source: Internet
The name stems from their characterization as a "fair weather waterspout on land". Source: Internet