1. A violent windstorm of limited extent, as the tornado, characterised by an inward spiral motion of the air with an upward current in the center; a vortex of air. It usually has a rapid progressive motion. The swift dark whirlwind that uproots the woods. And drowns the villages. (bryant)
Origin: Cf. Icel. Hvirfilvindr, Sw. Hvirfvelvind, Dan. Hvirvelvind, G. Wirbelwind. See Whirl, and Wind.