tornado
tor.na.do \to.r-'na-d-(.)o-\ n or tornadoes or tornados [modif. of Sp tronada thunderstorm, fr. tronar to thunder, fr. L pl Xtonare - more at THUNDER archaic 1: a tropical thunderstorm 2a: a squall accompanying a thunderstorm in Africa 2b: a violent destructive whirling wind accompanied by a funnel-shaped clou d that progresses in a narrow path over the land 3: a violent or destructive windstorm : WHIRLWIND