/
tɔːˈneɪdəʊ/
n.
(pl. tornadoes or tornados)
a mobile, destructive vortex of violently rotating winds having the appearance of a funnel-shaped cloud.
Derivative
Etymology
C16: perh. an alt. of Sp. tronada ‘thunderstorm’, by assoc. with Sp. tornar ‘to turn’.