1. an international scale of wind force from 0 (calm air) to 12 (hurricane); [syn: Beaufort scale, wind scale]
2. a scale from 0 to 12 for the force of the wind;
WordNet (r) 3.0 (2006):
Beaufort scale
n 1: an international scale of wind force from 0 (calm air) to
12 (hurricane) [syn: Beaufort scale, wind scale]
2: a scale from 0 to 12 for the force of the wind