Definition of the Beaufort scale noun from the Oxford Advanced Learner's Dictionary


the Beaufort scale

BrE BrE//ˈbəʊfət skeɪl//
; NAmE NAmE//ˈboʊfərt skeɪl//
[singular] Wind
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a range of numbers used for measuring how strongly the wind is blowing. The lowest number 0 means that there is no wind and the highest number 12 means that there is a hurricane (= a violent storm with very strong winds). The storm measured 10 on the Beaufort scale. See related entries: Wind Word Originmid 19th cent.: named after Sir Francis Beaufort (1774–1857), the English admiral and naval hydrographer who devised it.
See the Oxford Advanced American Dictionary entry: the Beaufort scale