from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A scale of wind velocity ranging from 0 (calm) to 12 (hurricane).
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An empirical measure for the intensity of the wind based mainly on the state of the sea or wave conditions.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an international scale of wind force from 0 (calm air) to 12 (hurricane)
- n. a scale from 0 to 12 for the force of the wind
After Sir Francis Beaufort (1774-1857), British naval officer.(American Heritage® Dictionary of the English Language, Fourth Edition)
Created by Irish hydrographer and British navy officer Francis Beaufort in 1806. (Wiktionary)
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