tornado

English dictionary entry

Meanings

noun
  1. A violent wind in the form of a mobile, rapidly rotating, funnel cloud that has contacted the ground.
verb
  1. To sweep through something violently.

Pronunciation

tô(r)-nā'dō /tɔː(ɹ)ˈneɪ.dəʊ/ /tɔɹˈneɪ.doʊ/ en-us-tornado.ogg

Word forms

tornado tornadoes tornados tornadoing tornadoed

Etymology

From earlier English ternado, attested since the 1550s as a nautical term for a windy thunderstorm. From Spanish tronada (“thunderstorm”), from tronar (“to thunder”), from Latin tonō (“to thunder”), from Proto-Indo-European *(s)tenh₂- (“to thunder”). The o and r were reversed in English (metathesis) under influence of Spanish tornar (“to twist, to turn”), from Latin tornō (“to turn”).

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